Council Decision (Euratom) 2025/492 of 18 February 2025 approving a Commission regulation on the application of Euratom safeguards

Official Journal EN of the European Union L series 2025/492 14.3.2025 COUNCIL DECISION (Euratom) 2025/492 of 18 February 2025 approving a Commission regulation on the application of Euratom safeguards THE COUNCIL OF THE EUROPEAN UNION, Having regard to the Treaty establishing the European Atomic Energy Community, and in particular Article 79 thereof, Having regard to the proposal from the European Commission, Whereas: It is important to keep the requirements imposed by Commission Regulation (Euratom) No 302/2005(1) in line with the current legal framework and developments in the fields of nuclear and information technology, HAS ADOPTED THIS DECISION: Sole Article The draft Commission Regulation on the application of Euratom safeguards is hereby approved. The text of that draft Regulation is attached to this Decision. Done at Brussels, 18 February 2025. For the Council The President A. DOMAŃSKI (1) Commission Regulation (Euratom) No 302/2005 of 8 February 2005 on the application of Euratom safeguards (OJ L 54, 28.2.2005, p. 1). ELI: http://data.europa.eu/eli/dec/2025/492/oj 1/136EN OJ L, 14.3.2025 ANNEX (draft) COMMISSION REGULATION (Euratom) …/… of … on the application of Euratom safeguards THE EUROPEAN COMMISSION, Having regard to the Treaty establishing the European Atomic Energy Community, and in particular Articles 77, 78, 79 and 81 thereof, Having regard to the approval of the Council(1)(+), Whereas: (1) Commission Regulation (Euratom) No 302/2005(2)defines the nature and extent of the requirements referred to in Articles 78 and 79 of the Treaty establishing the European Atomic Energy Community (hereinafter ‘the Treaty’). (2) In view of the increasing quantities of nuclear materials produced, used, carried, recycled and designated to be disposed of in the Community, and of the development of trade in these materials, it is essential to ensure the effectiveness and efficiency of safeguards. The nature and the extent of the requirements referred to in Article 79 of the Treaty and set out in Regulation (Euratom) No 302/2005 should therefore be brought up to date in the light of developments, particularly in the fields of nuclear and information technology. (3) Belgium, Bulgaria, Czechia, Denmark, Germany, Estonia, Ireland, Greece, Spain, Croatia, Italy, Cyprus, Latvia, Lithuania, Luxembourg, Hungary, Malta, Netherlands, Austria, Poland, Portugal, Romania, Slovenia, Slovakia, Finland, Sweden and the Community are parties to Agreement 78/164/Euratom(3) with the International Atomic Energy Agency in implementation of Article III(1) and (4) of the Treaty on the Non-Proliferation of Nuclear Weapons. Agreement 78/164/Euratom entered into force on 21 February 1977. It was later supplemented by Additional Protocol 1999/188/Euratom(4), which entered into force on 30 April 2004. (4) Agreement 78/164/Euratom contains a particular undertaking entered into by the Community concerning the application of safeguards on source and special fissile material in the territories of the States which have no nuclear weapons of their own and which are parties to the Treaty on the Non-Proliferation of Nuclear Weapons. (5) The procedures stipulated by Agreement 78/164/Euratom are the result of wide-ranging international negotiations with the International Atomic Energy Agency on the application of Article III(1) and (4) of the Treaty on the Non-Proliferation of Nuclear Weapons. These procedures were approved by the Board of Governors of that Agency. (1) Council Decision (Euratom) …/… (OJ L, …, ELI: …). (+) OJ: Please insert the number, date, title and OJ reference of the Decision contained in document ST 11949/24 in the footnote. (2) Commission Regulation (Euratom) No 302/2005 of 8 February 2005 on the application of Euratom safeguards (OJ L 54, 28.2.2005, p. 1). (3) Agreement 78/164/Euratom between the Kingdom of Belgium, the Kingdom of Denmark, the Federal Republic of Germany, Ireland, the Italian Republic, the Grand Duchy of Luxembourg, the Kingdom of the Netherlands, the European Atomic Energy Community and the International Atomic Energy Agency in implementation of Article III (1) and (4) of the Treaty on the non-proliferation of nuclear weapons (OJ L 51, 22.2.1978, p. 1). (4) Additional Protocol 1999/188/Euratom to the Agreement between the Republic of Austria, the Kingdom of Belgium, the Kingdom of Denmark, the Republic of Finland, the Federal Republic of Germany, the Hellenic Republic, Ireland, the Italian Republic, the Grand Duchy of Luxembourg, the Kingdom of the Netherlands, the Portuguese Republic, the Kingdom of Spain, the Kingdom of Sweden, the European Atomic Energy Community and the International Atomic Energy Agency in implementation of Article III(1) and (4) of the Treaty on the Non-proliferation of Nuclear weapons (OJ L 67, 13.3.1999, p. 1). 2/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 (6) The Community, France and the International Atomic Energy Agency are parties to an Agreement for the application of safeguards in France(5). That Agreement entered into force on 12 September 1981. It was supplemented by an Additional Protocol(6), which entered into force on 30 April 2004. (7) In the territory of France some installations or parts thereof as well as certain materials are liable to be involved in the production cycle for defence needs. Special safeguard procedures should therefore be applied to take account of these circumstances. (8) Nuclear Cooperation Agreements (NCAs) are agreements for cooperation on the peaceful use of nuclear energy which are concluded between the Community and third countries. They aim to facilitate nuclear trade, research and development, or other cooperative activities of mutual interest to the parties in connection with the peaceful use of nuclear energy, while abiding by the commitments and policies of the Community. Under Article 77(b) of the Treaty, the Commission should satisfy itself that, in the territories of the Member States, the provisions relating to supply and any particular safeguarding obligations assumed by the Community under such an agreement are complied with. This Regulation addresses specific aspects related to the reporting of nuclear materials as specified in certain NCAs, but does not cover items other than nuclear material. (9) To ensure the effectiveness of safeguards, it is essential to incorporate safeguard considerations early in the planning and design processes for new installations as well as for major modifications and decommissioning of existing installations. (10) To ensure the efficiency of safeguards, the nature and extent of the requirements for reporting nuclear materials and declaring the basic technical characteristics of installations should take into account the suitability of the nuclear material and installation to be used for non-peaceful purposes, without prejudice to any particular safeguarding obligations assumed by the Community under an agreement concluded with a third country or an international organisation. (11) The Communication to the Commission of 30 June 2022, ‘European Commission digital strategy – Next generation digital Commission’(7)stresses the importance of structuring data access and exchange by the Commission and the Member States. As part of that strategy, the Commission aims at enabling cross-border digital interaction, interoperability and digital modernisation of public administrations. Against this background and to enhance the efficiency of safeguards, reports and declarations should be submitted electronically. (12) This Regulation should provide for a more graded approach and thus for burden reduction for operators. Where relevant, different provisions are included throughout this Regulation, commensurate with the strategic value of nuclear materials and related installations and activities. (13) The provisions on security rules set out in Commission Decision (EU, Euratom) 2015/443(8) and in Commission Decision (EU, Euratom) 2015/444(9)should apply to information acquired under this Regulation without prejudice to Regulation (Euratom) No 3 of 31 July 1958(10). (14) The Commission should make every effort to protect commercial, technological and industrial secrets as well as other confidential information coming to its knowledge in the application of this Regulation. (15) The inspections and other safeguards related activities performed by the Commission inspectors in accordance with Articles 81 and 82 of the Treaty should be confined to the attainment of the objectives under Chapter VII of the Treaty in line with the principles set out in its Article 84, second subparagraph. (5) Agreement of 27 July 1978 between France, the European Atomic Energy Community and the International Atomic Energy Agency for the Application of Safeguards in France (IAEA information circular INFCIRC/290 of December 1981). (6) Protocol Additional to the Agreement between France, the European Atomic Energy Community and the International Atomic Energy Agency for the Application of Safeguards in France (IAEA information circular INFCIRC/290/Add.1 of 24 February 2005). (7) C(2022)4388 final. (8) Commission Decision (EU, Euratom) 2015/443 of 13 March 2015 on Security in the Commission (OJ L 72, 17.3.2015, p. 41). (9) Commission Decision (EU, Euratom) 2015/444 of 13 March 2015 on the security rules for protecting EU classified information (OJ L 72, 17.3.2015, p. 53). (10) Council Regulation (Euratom) No 3 of 31 July 1958 implementing Article 24 of the Treaty establishing the European Atomic Energy Community (OJ L 17, 6.10.1958, p. 406). ELI: http://data.europa.eu/eli/dec/2025/492/oj 3/136EN OJ L, 14.3.2025 (16) The Commission should provide timely relevant feedback on the information provided by operators, such as the installation-specific list of essential equipment and residual structures. Considering that in many cases this depends not only on the Commission, the Commission should strive to obtain the necessary feedback from third parties, as applicable, and share it with the operators and Member States concerned. (17) Up-to-date particular safeguard provisions at relevant installations are important for the implementation of safeguards. In that light the Commission should continue to adopt particular safeguard provisions after close consultation with the operators and Member States concerned, paying particular attention to ensuring that they are up-to-date. To the extent possible, the Commission should strive to have particular safeguard provisions adopted before the installation is to start its operations. (18) The application of this Regulation should be evaluated within 10 years of its entry into force in light of the technological progress in the nuclear industry and developments in information technologies. However, under special circumstances, this Regulation might need to be revised before that evaluation, for example, to comply with any particular safeguarding obligation assumed by the Community under an agreement concluded with a third State or an international organisation. (19) In the interest of legal certainty, Commission Regulation (Euratom) No 302/2005 should be repealed, HAS ADOPTED THIS REGULATION: CHAPTER I Scope and definitions Article 1 Scope This Regulation shall apply to any person or undertaking setting up or operating an installation for the production, separation, reprocessing, storage, disposal or other use of nuclear material. It shall not apply to holders of end products, such as alloys or ceramics, used for non-nuclear purposes which incorporate nuclear materials that are in practice irrecoverable, nor to holders of mineral materials other than ores, and related processed substances, which are used for non-nuclear purposes and not for obtaining source material. Article 2 Definitions For the purpose of this Regulation: (1) ‘non-nuclear-weapon Member States’ means Belgium, Bulgaria, Czechia, Denmark, Germany, Estonia, Ireland, Greece, Spain, Croatia, Italy, Cyprus, Latvia, Lithuania, Luxembourg, Hungary, Malta, Netherlands, Austria, Poland, Portugal, Romania, Slovenia, Slovakia, Finland, and Sweden; (2) ‘nuclear-weapon Member State’ means France; (3) ‘third country’ means any State which is not a member of the Community; (4) ‘nuclear material’ means ores, source materials or special fissile materials as defined in Article 197 of the Treaty; (5) ‘ores’ means ores as defined in Article 197, point 4, of the Treaty and as specified in the EAEC Council Regulation No 9(11); (11) EAEC Council Regulation No 9 defining the concentrations in ores as provided for in Article 197(4) of the Treaty establishing the European Atomic Energy Community (OJ L 12, 22.2.1960, p. 482). 4/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 (6) ‘categories’ (of nuclear material) are natural uranium, depleted uranium, uranium enriched in uranium-235 or uranium-233 to less than 20 %, uranium enriched in uranium-235 or uranium-233 to 20 % and above, thorium, plutonium, and any other material specified by the Council in accordance with the provisions of Art 197 of the Treaty; (7) ‘waste’ means nuclear material in concentrations or forms which make the nuclear material not recoverable for practical or economic reasons, for which no further use is foreseen and which may be disposed of; (8) ‘retained waste’ means waste, generated from processing or from an operational accident, that is measured or estimated on the basis of measurements, that has been transferred to a specific location within the material balance area from which it can be retrieved, and that is deemed to be not recoverable for the time being; (9) ‘conditioned waste’ means waste in which nuclear material, measured or estimated on the basis of measurements, has been conditioned in such a way (for example, in glass, cement, concrete or bitumen) that it is not suitable for further nuclear use; (10) ‘discards to the environment’ means nuclear material, measured or estimated on the basis of measurements, that has been irrevocably discarded into the environment as the result of a planned discharge and in such a way that it is not suitable for further use; (11) ‘disposal’ means the emplacement of waste, spent fuel or any other nuclear material in an installation without the intention of retrieval; (12) ‘spent fuel’ means nuclear fuel that has been irradiated in and permanently removed from a reactor core; spent fuel may either be considered as a usable resource that can be reprocessed or may be disposed of if no further use is foreseen; (13) ‘item’ means an identifiable unit such as a fuel assembly or a fuel pin; (14) ‘batch’ means a portion of nuclear material handled as a unit for accounting purposes at a key measurement point and for which the composition and quantity are defined by a single set of specifications or measurements; the nuclear material may be in bulk form or contained in a number of items; (15) ‘batch data’ means the total weight of each category of nuclear material and, in the case of plutonium and uranium, the isotopic composition when appropriate; for reporting purposes the weights of individual items in the batch shall be added together before rounding to the nearest unit; (16) ‘effective kilogram’ is a special unit used in the context of safeguarding nuclear material, obtained by taking: (a) for plutonium, its weight in kilograms; (b) for uranium with an enrichment of 0,01 (1 %) and above, its weight in kilograms multiplied by the square of its enrichment; (c) for uranium with an enrichment below 0,01 (1 %) and above 0,005 (0,5 %), its weight in kilograms multiplied by 0,0001; and (d) for depleted uranium with an enrichment of 0,005 (0,5 %) or below, and for thorium, its weight in kilograms multiplied by 0,00005; (17) ‘material balance area’ (MBA) means an area such that, for the purpose of establishing the material balance: (a) the quantity of nuclear material in each transfer into or out of each material balance area can be determined; and (b) the physical inventory of nuclear material in each material balance area can be determined when necessary in accordance with specified procedures; (18) ‘key measurement point’ means a location where nuclear material appears in such a form that it may be measured to determine material flow or inventory, including but not limited to, the places where nuclear material enters, leaves or is stored in, material balance areas; ELI: http://data.europa.eu/eli/dec/2025/492/oj 5/136EN OJ L, 14.3.2025 (19) ‘book inventory’ of a material balance area means the algebraic sum of the most recent physical inventory of that material balance area, and of all inventory changes that have occurred since that physical inventory was taken; (20) ‘physical inventory’ means the sum of all the measured batch quantities or derived estimates of batch quantities of nuclear material on hand at a given time within a material balance area, obtained in accordance with specified procedures; (21) ‘material unaccounted for’ means the difference between the physical inventory and the book inventory; (22) ‘shipper/receiver difference’ means the difference between the quantity of nuclear material in a batch as measured at the receiving material balance area and the quantity as stated by the shipping material balance area; (23) ‘source data’ means those data, recorded during measurement or calibration or used to derive empirical relationships, which identify nuclear material and provide batch data, including: weight of compounds; conversion factors to determine weight of element; specific gravity; element concentration; isotopic ratios; relationship between volume and manometer readings; and relationship between plutonium produced and power generated; (24) ‘site’ means an area delimited by the Community and a non-nuclear-weapon Member State, comprising one or more installations, including closed-down installations, as defined in their relevant basic technical characteristics, whereby: (a) in the case of a closed-down installation where source material or special fissile material in quantities of less than one effective kilogram was customarily used, the meaning of ‘site’ is limited to locations with hot cells or where activities related to conversion, enrichment, fuel fabrication or reprocessing were carried out; (b) ‘site’ also includes all plants co-located with the installations which provide or use essential services including hot cells for processing irradiated materials not containing nuclear material; plants for the treatment, storage and disposal of waste; and buildings associated with activities specified in Annex 1 to Additional Protocol 1999/188/Euratom and identified by the State concerned; (c) in the case of a national Location Outside Facility (LOF), all included holders of small amounts of nuclear material may together constitute one site; (25) ‘hot cell’ means a cell or interconnected cells totalling at least 6 m3 in volume with shielding equal to or greater than the equivalent of 0,5 m of concrete, with a density of 3,2 g/cm3 or greater, outfitted with equipment for remote operations; (26) ‘site representative’ means any person, undertaking or entity designated by a non-nuclear-weapon Member State as being responsible for the declaration referred to in Article 6(1); (27) ‘installation’ means, from the planning stage until it is confirmed as decommissioned: (a) a reactor, a critical installation, a conversion plant, a fabrication plant, a reprocessing plant, an isotope separation plant, a separate storage installation, an encapsulation plant, a geological repository, a waste treatment, waste storage or waste disposal installation or any other location where source material or special fissile material is held or is customarily used in amounts greater than one effective kilogram; (b) any LOF; (c) any location where, in order to obtain source materials, ores are extracted, kept or processed; (28) ‘Location Outside Facilities’ (LOF) means a location not covered under the definition set out in point 27(a) where source material or special fissile material is held or customarily used in amounts of one effective kilogram or less; (29) ‘national Location Outside Facilities’ means a particular LOF comprising holders of small amounts of nuclear material in line with criteria agreed between the Member States where the material is held and the Commission; (30) ‘Catch All MBA’ (CAM) means a particular LOF comprising small amounts of nuclear material according to criteria set out in Annex I-N; (31) ‘closed-down’ means, when referring to an installation, that it has been verified that operations have been stopped and that all nuclear material subject to Euratom safeguards has been removed; 6/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 (32) ‘under decommissioning’ means, when referring to an installation, that activities on dismantling, or recovery and removal of nuclear material or the removing or rendering inoperable of essential equipment are ongoing with the aim of decommissioning the installation; (33) ‘decommissioned’ means, when referring to an installation, that it has been verified that all nuclear material subject to Euratom safeguards has been removed and residual structures and equipment essential for using the installation for purposes other than disposal of nuclear material which is no longer subject to Euratom safeguards have been removed or rendered inoperable so that processing or utilization of nuclear material is no longer possible; (34) ‘operator’ means any person or undertaking, including any organisation, planning to set up or legally responsible for setting up or operating an installation; (35) ‘equivalence principle’ means that a particular safeguard obligation applying to a quantity of nuclear material may be transferred to another quantity of nuclear material, subject to equivalence criteria; (36) ‘equivalence criteria’ means specific criteria to be fulfilled with regard to the quantity, category, isotopic composition, physical form, chemical form and material state of nuclear material in order to apply the equivalence principle; (37) ‘proportionality principle’ means that, when nuclear material subject to a particular safeguard obligation is mixed or transformed in a given proportion with nuclear material not subject thereto, the product, by-product, waste or losses generated from processing is subject to the particular safeguard obligation in the same proportion; (38) ‘pool accounting’ means a specific accounting method whereby a unique obligation code (pool code) is used to declare book inventories and physical inventory listings to the Commission pursuant to Articles 14 and 15, although the nuclear material may be subject to various particular safeguard obligations; (39) ‘accountancy pool’ means the scope within which the application of pool accounting has been authorised in one or several material balance areas. CHAPTER II Basic technical characteristics and particular safeguard provisions Article 3 Declaration of the basic technical characteristics 1. Operators shall declare to the Commission the basic technical characteristics of their installations. For installations referred to in Article 2, point (27)(c), the provisions of Articles 27 and 28 apply. For installations referred to in Article 2, point (29), the provisions of Article 37 apply. For new installations referred to in Article 2, point (27)(a), a preliminary declaration shall be submitted to the Commission and the Member State concerned as soon as the main design options are defined to enable the inclusion of safeguards considerations early in the installation’s planning stage. 2. Whenever basic technical characteristics are declared for the first time (‘initial declaration of the basic technical characteristics’) or updated, the relevant questionnaire in Annex I shall be used in order to fill in the relevant information applicable to the installation. 3. The declaration of the basic technical characteristics shall be submitted electronically. 4. The Commission’s inspectors shall transmit initial observations including on essential equipment, where applicable, or request additional initial information within 6 months of the operator’s declaration of the basic technical characteristics. If requested, further explanations in connection with the information submitted in the declaration of the basic technical characteristics shall be provided to the Commission within 30 days, or within a different agreed timeframe. ELI: http://data.europa.eu/eli/dec/2025/492/oj 7/136EN OJ L, 14.3.2025 Article 4 Time-limits for the initial declaration of the basic technical characteristics 1. The complete declaration of the basic technical characteristics of new installations shall be submitted to the Commission in accordance with Article 3(1) at least 200 days before the first consignment of nuclear material is due to be received. 2. For new installations referred to in Article 2, point (27)(a), all available information relating to the owner, operator, location, installation purpose and type, capacity as well as pre-operation information shall be communicated to the Commission as soon as the information is available or within a different timeframe agreed upon by the operator, the Member State and the Commission based on the preliminary declaration of the basic technical characteristics referred to in Article 3(1), fourth subparagraph, which shall not be later than the first submission of the application for a construction licence. To facilitate the inclusion of safeguards considerations early in the design process of installations, the type, form and expected throughput and inventories of nuclear material as well as drawings indicating expected flows and storage of nuclear materials may also be provided to the Commission as part of the information referred to in the first subparagraph. 3. Any operator of an installation planning to use techniques for the chemical processing of irradiated materials shall provide, at the same time as the information referred to in paragraph 2, any additional information needed to enable the Commission to approve those techniques as required by Article 78 of the Treaty. 4. Information required under paragraphs 2 and 3 shall be provided in the dedicated fields of the relevant questionnaire in Annex I. 5. Any operator of an installation in the territory of a State acceding to the European Union shall declare to the Commission the basic technical characteristics of that installation within 30 days of the date of entry into force of this Regulation in that State, or within a different agreed timeframe. Article 5 Declaration of changes to the basic technical characteristics 1. Significant changes in the information referred to in Article 4(2) and (3) shall be declared to the Commission and the relevant Member State whenever the notified design of the installation is modified, or within a different agreed timeframe. 2. Significant changes in the basic technical characteristics regarding the purpose, type or layout of the installation and in particular changes affecting the access routes to areas where nuclear materials are used or stored shall be declared as soon as the decision on their implementation is taken, and not later than 20 days before the work on the modification is scheduled to commence. Additional requirements regarding changes in the basic technical characteristics to be declared in advance may be specified in the particular safeguard provisions referred to in Article 8. 3. Changes in the basic technical characteristics for which advance declaration is not required under paragraph 2 shall be declared within 30 days after the modification is complete. Decommissioning plans and timeframes for their implementation shall be declared using the dedicated fields of the relevant questionnaire in Annex I when they have been adopted or decided, respectively. Any update shall be declared whenever the information provided in the questionnaire changes. 4. Changes in the basic technical characteristics resulting from decommissioning activities shall be declared monthly, by the end of the following month, but only if the information in the relevant questionnaire in Annex I has changed during the month. Article 6 Declaration of a general description of the site 1. Each Member State which is a party to Additional Protocol 1999/188/Euratom shall designate a site representative for each site on its territory, who shall submit to the Commission a declaration containing a general description of the site, in accordance with Annex II of this Regulation. 8/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 The declaration of a general description of the site shall be submitted within 120 days of the date of entry into force of Additional Protocol 1999/188/Euratom in the Member State concerned and an update shall be submitted by 1 April of each year. The declaration of a general description of the site and its update shall be submitted electronically. The declaration of a general description of the site shall fulfil the requirements of Article 2, point (a) (iii), of Additional Protocol 1999/188/Euratom and shall be separate from the declaration of the basic technical characteristics. 2. While the site representative carries the responsibility for the timely collection of the relevant information and the submission of the declaration of a general description of the site to the Commission, the responsibility for the correctness and the completeness of that declaration remains with the persons or undertakings setting up or operating the installation; for buildings on a site which do not involve nuclear material, that responsibility remains with the Member State concerned. 3. If requested, further details or explanations in connection with the information submitted in the declaration of a general description of the site shall be provided to the Commission within 15 days. Article 7 Programme of activities 1. To enable the Commission to plan its safeguards activities, operators shall communicate electronically to the Commission the following information: (a) an outline programme of activities on the basis of Annex XI, indicating, in particular, provisional dates for taking a physical inventory; (b) at least 40 days before taking a physical inventory, the programme for such work. For installations referred to in Article 2, point (27)(b), as a minimum the provisional dates for taking a physical inventory shall be provided. Changes affecting the outline programme of activities and, in particular, the taking of physical inventories shall be communicated to the Commission without delay. 2. Unless otherwise specified in the particular safeguard provisions referred to in Article 8, the programme of activities shall be communicated annually, at the latest on 15 November of the preceding year. Article 8 Particular safeguard provisions 1. Acting on the basis of the declaration of the basic technical characteristics, the Commission adopts particular safeguard provisions relating to the matters set out in paragraph 2. Those particular safeguard provisions may be revised at the request of the Member State concerned. For installations referred to in Article 2, point (27)(a), the particular safeguard provisions shall be drawn up by means of a Commission decision addressed to the operator concerned, taking account of operational and technical constraints and after close consultation with the operator concerned and the relevant Member State. For installations referred to in Article 2, point (27)(b), a single Commission decision addressed to several or all operators concerned may be drawn up, setting out the particular safeguard provisions. These particular safeguard provisions shall be set out after close consultation with the operators concerned and the relevant Member State. The operator to whom a decision of the Commission is addressed shall be notified thereof, and a copy of such notification shall be transmitted to the relevant Member State. 2. For installations referred to in Article 2, point (27)(a), the particular safeguard provisions shall include the following: ELI: http://data.europa.eu/eli/dec/2025/492/oj 9/136EN OJ L, 14.3.2025 (a) the material balance areas and the selection of key measurement points for determining the flow and stocks of nuclear materials; (b) the changes in basic technical characteristics for which advance notification is required; (c) the procedures for keeping records of nuclear materials for each material balance area and for drawing up reports; (d) the frequency of, and procedures for, taking physical inventories for accounting purposes as part of safeguards measures; (e) the containment and surveillance measures, in accordance with the arrangements agreed upon with the operator concerned; (f) the arrangements for sample-taking by the operator solely for safeguards purposes; (g) the list of essential equipment for the installation. For installations referred to in Article 2, point (27)(b), the particular safeguard provisions may be limited to points (a), (c) and (d) of the first subparagraph of this paragraph. 3. The particular safeguard provisions may also specify: (a) the content of subsequent communications required under Article 7 or 16; (b) the conditions under which the provisions of this Regulation apply, in particular the conditions under which shipments and receipts of nuclear material require advance notification; (c) other agreed safeguards measures considered necessary to ensure that nuclear materials are not diverted from their intended uses, in accordance with the arrangements with the operator concerned. 4. The Commission shall reimburse the operator concerned the cost of special services which are provided for in the particular safeguard provisions or which are provided as the result of a special request by the Commission or its inspectors, exclusively based on an agreement defining those costs and the conditions of their reimbursement. Works executed by the operator before the signature of the agreement shall not be reimbursable. The reimbursement shall be limited to the amount necessary to balance the costs incurred by the operator for the special services and shall not include any profit. The procedure to be followed for the operator to claim reimbursement of the cost related to the inspections shall be described in the guidelines referred to in Article 42. CHAPTER III Nuclear material accountancy Article 9 Accounting system 1. Starting from the moment operators hold nuclear material, they shall maintain a system of accountancy and control for nuclear materials, which shall be effective in preventing, detecting and timely fixing irregularities leading to situations where nuclear material is incorrectly accounted for. This system shall include accounting and operating records and, in particular, information on the quantities, category, form and composition of nuclear materials as provided for in Article 21, their actual location and the particular safeguard obligation as provided for in Article 19, together with details of the recipient or shipper when nuclear materials are transferred. 2. The system of measurements on which the records are based shall comply with the most recent international standards or shall be equivalent in quality to those standards. On the basis of those records, it must be possible to draw up and substantiate all accounting declarations made to the Commission. All records related to nuclear materials shall be retained as long as the nuclear materials are present in the installation, and for at least 5 years after the nuclear materials stopped being present in the installation, unless agreed otherwise. Further details may be specified in the particular safeguard provisions referred to in Article 8 for each installation. 10/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 3. Accounting and operating records shall be made available in electronic form, if they are kept in this form by the installation. For installations referred to in Article 2, point (27)(a), an up-to-date list of inventory items shall be made available to the Commission’s inspectors in electronic form upon reasoned request, using the available information in accordance with the indicative format set out in Annex X. Article 10 Operating records 1. For each material balance area of an installation, the operating records shall include, where appropriate: (a) the operating data used to determine all changes in the quantities and composition of nuclear material present in the installation, including shipping documents for both received and shipped batches of nuclear material; (b) a list of inventory items and their location, kept up to date to the best extent possible; (c) the data, including derived estimates of random errors and systematic errors, obtained from the calibration of tanks and instruments as well as from sampling and analysis; (d) the data resulting from quality control measures applied to the nuclear material accountancy system, including derived estimates of random errors and systematic errors; (e) a description of the sequence of actions taken to prepare for, and take, a physical inventory, and to ensure that the inventory is correct and complete; (f) a description of the actions taken to recognise, investigate and solve nuclear material accountancy and control discrepancies that have arisen; (g) the results from inventory control procedures and, for bulk-handling installations, the results of the tests for acceptance of the material balance, taking into account justified measurement and process uncertainties; (h) a description of the actions taken to ascertain the cause and magnitude of any accidental or unmeasured loss that might have occurred; (i) the isotopic composition of plutonium, including its decay isotopes, and reference dates, if recorded at the installation for operational needs. 2. Original operating records shall be made available to the Commission’s inspectors, in electronic form if available. Upon a reasoned request and in compliance with Article 40(2), copies of operating records shall be communicated to the Commission, in electronic form if available. Upon a reasoned request by the operator, special arrangements concerning the form and transmission of the information may be agreed. Article 11 Accounting records In respect of each material balance area, the accounting records shall contain the following: (a) all inventory changes, so that the book inventory can be determined at any time; (b) all measurement and counting results used to determine the physical inventory; (c) all corrections made to inventory changes, book inventories and physical inventories. The accounting records relating to any inventory change and physical inventory shall include the material identification, batch data and source data for each batch. These records shall account separately for uranium, thorium and plutonium, in accordance with the categories listed in Article 21(2), point (b). In addition, for each inventory change, the date of the change and, when appropriate, the dispatching material balance area or the shipper and the receiving material balance area or the recipient shall be indicated. ELI: http://data.europa.eu/eli/dec/2025/492/oj 11/136EN OJ L, 14.3.2025 Article 12 Accounting reports Starting from the moment operators hold nuclear material, they shall provide the Commission with accounting reports. The accounting reports shall contain the information available on the date of reporting and must be corrected at a later date if necessary. Accounting reports shall be transmitted to the Commission electronically. Upon a reasoned request, further details or explanations in connection with those accounting reports shall be provided to the Commission within 3 weeks or within a different agreed timeframe. Article 13 Initial book inventory Any operator in the territory of a State acceding to the European Union shall provide the Commission, within 30 days of the date of entry into force of this Regulation in that State, with an initial book inventory of all nuclear materials it is holding, including nuclear materials previously considered as retained waste and nuclear materials previously exempted from IAEA safeguards, except nuclear material on which IAEA safeguards were terminated. The format set out in Annex V shall be used. Article 14 Inventory change report 1. Starting from the moment operators hold nuclear material and for each material balance area, they shall provide the Commission with inventory change reports in respect of all nuclear materials using the format set out in Annex III. Unless otherwise specified in the particular safeguard provisions referred to in Article 8 for an installation, inventory change reports shall be sent monthly, at the latest 15 days after the end of the month, and shall state all inventory changes which have occurred or become known during that month. 2. For months in which a physical inventory is taken, and the physical inventory taking date is not the last day of the month, two separate inventory change reports shall be provided: (a) a first inventory change report containing any inventory changes up to and including the physical inventory taking date, which shall be sent at the latest, together with the second inventory change report, or together with the physical inventory listing and the material balance report if the latter are sent before the second inventory change report; (b) a second inventory change report containing all inventory changes from the first day after the physical inventory taking date to the end of the month, which shall be sent within 15 days of the end of the month. 3. For months in which no inventory changes occur, operators concerned shall send the inventory change report, carrying over the ending book inventory of the previous month. 4. In order that they may be reported as a single inventory change, small inventory changes, such as transfers of samples for purposes of analysis, may be grouped together, as laid down in the particular safeguard provisions referred to in Article 8 for the installation concerned. 5. Inventory change reports may be accompanied by comments explaining the inventory changes. Article 15 Material balance report and physical inventory listing 1. For each material balance area, operators shall transmit to the Commission: (a) material balance reports, in the format set out in Annex IV, indicating: (i) beginning physical inventory; 12/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 (ii) inventory changes (first increases, then decreases); (iii) ending book inventory; (iv) ending physical inventory; (v) material unaccounted for; (b) a physical inventory listing, in the format set out in Annex V, showing all batches separately. 2. The reports and the listing referred to in paragraph 1 shall be transmitted as soon as possible and at the latest within 30 days of the date on which a physical inventory was taken. 3. Unless otherwise specified in the particular safeguard provisions referred to in Article 8 for an installation, a physical inventory listing, based on an actual inventory taking of all nuclear materials present in the material balance area, shall be produced every calendar year. The period between two successive physical inventory takings shall not exceed 14 months. Article 16 Special reports Operators shall transmit to the Commission a special report whenever any of the circumstances referred to in Article 17 or 25 arise. The special reports, and further details or explanations requested in connection with those reports, shall be provided to the Commission without delay. If further technical investigations are required, those special reports shall contain the information available on the date of reporting and be completed as soon as possible with the outcome of those investigations. Article 17 Unusual occurrences A special report shall be provided, as required in Article 16, in the following cases: (a) if, as a result of any unusual incident or circumstances, it is considered that there has been or might be an increase or a loss of nuclear material, including during transfer to or from the installation; in such case, the special report shall include a description of the incident or circumstances, the weights of uranium, thorium and plutonium, in accordance with the categories listed in Article 21(2), point (b), the weight of the fissile isotopes in the case of enriched uranium, as well as a description of how the weights were established, and any further actions taken, including to avoid recurrence of a loss; (b) if the containment has unexpectedly changed, to a point where an unauthorised removal of nuclear material has become possible; in such case, the special report shall include a description of the incident or circumstances, and it may also include a description of any actions taken to reduce the risk of unauthorised removal and to avoid recurrence. The operators concerned shall provide those special reports as soon as they have become aware of any such increase or loss or of any such sudden unexpected change, or of anything which leads them to consider that there has been such an occurrence. The causes for such unusual occurrences shall also be stated as soon as they are known. For each installation, further details on the information to be provided may be specified in the particular safeguard provisions referred to in Article 8. ELI: http://data.europa.eu/eli/dec/2025/492/oj 13/136EN OJ L, 14.3.2025 Article 18 Reporting of nuclear transformations In respect of reactors, calculated data on nuclear transformations shall be reported in the inventory change report at the latest when irradiated fuel is transferred from the reactor material balance area. In addition, other procedures for recording and reporting nuclear transformations may be specified in the particular safeguard provisions referred to in Article 8. Article 19 Particular safeguard obligations 1. Nuclear materials subject to particular safeguard obligations entered into by the Community in an agreement concluded with a third country or an international organisation shall be identified with the appropriate obligation code, as communicated by the Commission, in the following notifications and records: (a) initial book inventory provided for in Article 13; (b) inventory change reports, including ending book inventories, provided for in Article 14; (c) material balance reports and physical inventory listings provided for in Article 15; (d) intended exports and imports provided for in Articles 23 and 24; (e) accounting records provided for in Article 11, first paragraph, points (a) and (c). Unless specifically prohibited in any of those agreements with a third country or an international organisation, the identification of nuclear materials referred to in the first subparagraph shall not preclude the physical mixing of nuclear materials. 2. Where applicable, the attribution of obligation codes in the records provided for in Article 11 and in the reports provided for in Articles 14 and 15 shall comply with the proportionality principle. 3. Paragraph 1 shall not apply to any agreement concluded by the Community and the Member States with the International Atomic Energy Agency. Article 20 Pool accounting and obligation exchanges 1. The use, scope, reporting and modalities of pool accounting require prior authorisation by the Commission, which may be granted on a case-by-case basis if such use is justified in view of the type and activities of the installation and in accordance with criteria described in the recommendation referred to in Article 42. The modalities of pool accounting shall not prejudice the fulfilment of the commitments of the Community, such as respect for the equivalence principle and the proportionality principle. A reasoned and motivated request for authorising the use of pool accounting shall be submitted in writing to the Commission, with a proposal of pool accounting modalities. 2. The pool code, as communicated by the Commission, shall be used to identify all nuclear materials in the accountancy pool in the reports provided for in Articles 14 and 15. The total amounts of nuclear materials assigned to the pool shall be known at all times for each obligation code and shall be provided to the Commission each month in the form of an electronic pool report. 3. The authorisation referred to in paragraph 1 may be withdrawn if the provisions of this Regulation or the conditions specified in the authorisation are no longer met. 4. Particular safeguard obligations as referred to in Article 19 may be exchanged between two quantities of nuclear materials, subject to equivalence criteria applicable to the relevant NCA and to specific conditions communicated to the operator within an agreed timeframe after the request and all relevant information is received. 14/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 A reasoned and motivated request for an exchange of obligations shall be submitted electronically to the Commission using the form set out in Annex XVI. The operator concerned shall be informed within an agreed timeframe whether the conditions for the exchange of obligations are met. Article 21 Weight units and categories of nuclear materials 1. In any notification referred to in this Regulation, quantities of materials covered by the Regulation shall be expressed in grams. The corresponding material accounting records shall be kept in grams or in smaller units. They shall be kept in such a manner as to render them trustworthy and, in particular, to comply with current practices in the Member States. In the notifications, quantities may be rounded down when the first decimal is 0 to 4 and rounded up when the first decimal is 5 to 9. 2. Unless otherwise provided for in the particular safeguard provisions referred to in Article 8, any notification referred to in this Regulation shall include the following: (a) the total weight of the elements uranium, thorium and plutonium, and also, for enriched uranium, the total weight of the fissile isotopes; (b) separate material balance reports as well as separate line entries in inventory change reports and in physical inventory listings for the following categories of nuclear material: (i) depleted uranium; (ii) natural uranium; (iii) uranium enriched to less than 20 %; (iv) uranium enriched to 20 % and above; (v) plutonium; (vi) thorium. Article 22 Derogations 1. An operator may be derogated from the rules governing the frequency of the inventory change reports provided for in Article 14, in order to take account of any particular circumstances in which safeguarded materials are used or produced. A request for such derogation shall be submitted electronically to the Commission by the operator concerned using the format set out in Annex IX. Such derogation may only apply to a whole material balance area in which nuclear material is not processed or stored together with nuclear material for which no derogation is granted. 2. A derogation may apply to a material balance area holding: (a) quantities of nuclear material commensurate with those specified in Annex I-N, which are kept in the same state for long periods; (b) depleted uranium, natural uranium or thorium which is used exclusively in non-nuclear activities; (c) special fissile materials when used in gram quantities or less as sensing components in instruments; (d) plutonium with an isotopic concentration of plutonium-238 exceeding 80 %. ELI: http://data.europa.eu/eli/dec/2025/492/oj 15/136EN OJ L, 14.3.2025 3. The operator and the Member State concerned shall be informed whether the conditions for derogation set out in paragraphs 1 and 2 are met. If those conditions are met, an annual inventory change report shall be transmitted electronically to the Commission by 31 January, using the format set out in Annex III. That report shall describe the situation at 31 December of the previous calendar year. At the same time, a material balance report and a physical inventory listing showing all batches separately shall be transmitted electronically using the formats set out in Annexes IV and V. 4. In addition, in the case of an inventory change occurring during the year in a material balance area to which a derogation applies, the operator concerned shall transmit electronically an inventory change report to the Commission as soon as possible and, at the latest, within 15 days of the end of the month in which the inventory change occurred, using the format set out in Annex III. 5. If the conditions for derogation set out in paragraphs 1 and 2 are no longer met, and after verification with the operator concerned, the operator concerned and the relevant Member State shall be informed that the derogation no longer applies. CHAPTER IV Transfers between States Article 23 Exports and shipments 1. Operators shall give advance notification to the Commission if any source materials or special fissile materials: (a) are exported to a third country; (b) are shipped from a non-nuclear-weapon Member State to a nuclear-weapon Member State; or (c) are shipped from a nuclear-weapon Member State to a non nuclear-weapon Member State. 2. Advance notification shall be required only: (a) where the consignment exceeds one effective kilogram; or (b) where an installation transfers a total quantity of materials to the same State that exceeds or may exceed one effective kilogram in any consecutive period of 12 months, even though no single consignment exceeds one effective kilogram. 3. The advance notification shall be given after the conclusion of the contractual arrangements leading to the transfer, using the form set out in Annex VI, and it shall reach the Commission at least 8 working days before the material is to be packed for transfer. 4. Where a prior consent by a third country is required for the transfer, the transfer shall not take place before confirmation by the Commission that such prior consent has been granted. 5. On a reasoned request by the operator, special arrangements concerning the form and transmission of the advance notification may be agreed. 6. Exports and shipments of nuclear material contained in waste or ores are not subject to the provisions of paragraphs 1 to 4. Article 24 Imports and receipts 1. Operators shall give advance notification to the Commission if any source materials or special fissile materials: (a) are imported from a third country; (b) are received in a non-nuclear-weapon Member State from a nuclear-weapon Member State; or 16/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 (c) are received in a nuclear-weapon Member State from a non nuclear-weapon Member State. 2. Advance notification shall be required only: (a) where the consignment exceeds one effective kilogram; or (b) where an installation imports or receives a total quantity of materials from the same State that exceeds or may exceed one effective kilogram in any consecutive period of 12 months, even though no single consignment exceeds one effective kilogram. 3. The advance notification shall be given as far in advance as possible of the expected arrival of the material and, at the latest, on the date of receipt, using the form set out in Annex VII, and shall reach the Commission at least 5 working days before the material is unpacked. 4. On a reasoned request by the operator, special arrangements concerning the form and transmission of the advance notification may be agreed. 5. This Article shall not apply to imports and receipts of nuclear material contained in waste or ores. Article 25 Loss or delay during transfer A special report as referred to in Article 16 shall be submitted by the operators notifying a transfer under Article 23 or 24 where, following exceptional circumstances or an incident, they have received information that nuclear materials have been lost or appear to be lost, or where there has been a considerable delay during transfer. In such cases, the special report shall include a description of the incident or circumstances and may also include any further actions taken. For each installation, further details on the information to be provided may be specified in the particular safeguard provisions referred to in Article 8. Article 26 Communication of change of date Any change of the dates indicated for packing before transfer, transport or unpacking of nuclear materials in the advance notifications referred to in Articles 23 and 24 shall be communicated without delay, with an indication of the revised dates if known, unless that change gives rise to a special report. CHAPTER V Specific provisions Article 27 Ore installations 1. Any operator of an installation referred to in Article 2, point (27)(c) in the territory of a Member State shall declare the basic technical characteristics of the installation to the Commission, using the questionnaire in Annex I-Q, at least 120 days before the extraction of ores commences, and shall communicate the programme of activities in accordance with Article 7. 2. By way of derogation from Articles 9, 10 and 11, any operator extracting or keeping ores shall keep accounting records indicating, in particular, the quantities of ores extracted, with the average uranium and thorium content, and the stock of extracted ores at the mine. The records shall also contain details of shipments, stating the date, consignee and quantity in each case. Such records shall be retained for at least 5 years. 3. Any operator of an installation referred to in Article 2, point (27)(c), in the territory of a State acceding to the European Union shall declare to the Commission the basic technical characteristics of that installation within 30 days of the date of entry into force of this Regulation in that State. ELI: http://data.europa.eu/eli/dec/2025/492/oj 17/136EN OJ L, 14.3.2025 Article 28 Ore shipment/export reports By way of derogation from Articles 12 to 19 and Article 21, any operator extracting ores or keeping ores shall report to the Commission, using the form set out in Annex VIII, on: (a) the amount of material dispatched from each mine, by 31 January of each year for the previous calendar year; and (b) exports of ores to third countries, by the date of the dispatch at the latest. Article 29 Carriers and temporary storage agents Any person or undertaking engaged, within the territories of the Member States, in transporting, or temporarily storing during transport, nuclear materials shall accept or hand over such nuclear materials only against a duly signed and dated receipt. This receipt shall state the names of the parties handing over and receiving the nuclear materials and indicate the quantities carried as well as the category, form and composition of the nuclear materials. If so required for reasons of physical protection, the description of the nuclear materials transferred may be replaced by a suitable identification of the consignment. Such identification shall be traceable to records held by the operators shipping and receiving the nuclear materials. Those records shall be retained by the contracting parties for at least 5 years. Article 30 Substitute records for carriers and temporary storage agents Records already held by persons or undertakings in accordance with existing regulations which apply to them in the territory of the Member States in which they operate may be considered as being the records referred to in Article 29, provided that such records contain all the information required under that Article. Article 31 Intermediaries Any intermediaries taking part in the conclusion of any contract for the supply of nuclear materials, such as authorised agents, brokers or commission agents, shall keep all records relating to the transactions performed by them or on their behalf for at least 5 years after expiry of the contract. Such records shall contain the names of the contracting parties and indicate the date of the contract as well as the quantity, category, form, composition, origin and destination of the materials. Article 32 Transmission of information and data The Commission may transmit to the International Atomic Energy Agency information and data obtained pursuant to this Regulation. Article 33 Waste initial stock list and accounting records 1. Any operator in the territory of a State acceding to the European Union holding nuclear material in conditioned waste on which IAEA safeguards were terminated shall provide to the Commission, within 30 days of the date of entry into force of this Regulation in that State, an initial stock list of all such nuclear material by category. 18/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 2. Any operator treating or storing nuclear material that has previously been declared as retained or conditioned waste, shall keep accounting records thereof. By way of derogation from Articles 9 to 13, Article 15 and Article 19(1) for material that has been previously declared as retained waste and from Articles 9 to 15 and Article 19(1) for material that has previously been declared as conditioned waste, those records shall include: (a) the operating data used to determine changes in the quantities and composition of nuclear material; (b) a stock list to be updated yearly after the physical inventory taking; (c) a description of the sequence of actions taken to prepare for and take a physical inventory, and to ensure that the inventory is correct and complete; (d) a description of the actions taken in order to ascertain the cause and magnitude of any accidental loss that might have occurred; (e) all stock changes, so that the book inventory can be established when requested. Specific reporting requirements for the processing of waste may be specified in the particular safeguard provisions referred to in Article 8. Article 34 Processing of waste Operators shall give advance notification to the Commission of any processing campaign of material that has previously been declared as retained or conditioned waste, excluding repackaging or further conditioning without separation of elements. That advance notification shall include information on the amount of plutonium, high enriched uranium and uranium-233 per batch, the form, such as glass or high active liquid, the expected duration of the campaign, and the location of the material before and after the campaign. Such notification shall be communicated electronically to the Commission using the form set out in Annex XII, at least 200 days before the campaign starts. Article 35 Transfers of conditioned waste Operators shall submit electronically by 31 January annual reports on: (a) shipments or exports of conditioned waste to an installation within or outside the territories of the Member States, using the form set out in Annex XIII; (b) receipts or imports of conditioned waste from an installation within or outside the territories of the Member States, using the form set out in Annex XIV; (c) changes in location of conditioned waste containing plutonium, high enriched uranium or uranium-233, using the form set out in Annex XV. Article 36 Termination of safeguards 1. Safeguards under this Regulation may be terminated on nuclear material as follows: (a) nuclear material which is measured or estimated on the basis of measurements, and which has been irrevocably discarded to the environment as the result of a planned discharge; for this purpose, discards to the environment shall be declared in the inventory change report referred to in Article 14; (b) nuclear material considered as irrecoverable for practical or economic reasons which is incorporated in end products used for non-nuclear purposes such as alloys or ceramics; for this purpose, termination of use shall be declared in the inventory change report referred to in Article 14; ELI: http://data.europa.eu/eli/dec/2025/492/oj 19/136EN OJ L, 14.3.2025 (c) nuclear material contained in waste in very low concentrations measured or estimated on the basis of measurements, even if these materials are not disposed of; for this purpose, termination of safeguards shall be declared in the inventory change report referred to in Article 14; (d) nuclear material contained in conditioned waste in very low concentrations, which is already disposed of. For this purpose, termination of safeguards shall be declared in the inventory change report referred to in Article 14. 2. For termination of safeguards under paragraph 1, points (b), (c) and (d), a reasoned and justified request shall be transmitted by an operator to the Commission. The operator concerned and the relevant Member State shall be informed whether the conditions for termination of safeguards are met. Article 37 National LOF 1. A national LOF, comprising individual holders of small amounts of nuclear material (‘smallholders’) within that Member State, may be put in place upon a request by the responsible authority of a Member State to the Commission. Several national LOFs may be put in place in a Member State. 2. The responsible authority shall supervise the national LOF and ensure implementation of Articles 3 to 7, 12 to 19, 21 and 23 to 26. 3. The combined inventory of source material and special fissile material in a national LOF shall not exceed one effective kilogram. 4. The declaration of the basic technical characteristics of the national LOF shall be submitted by the responsible authority to the Commission using the questionnaire in Annex I-M. Any update shall be submitted, at the latest, when transmitting the physical inventory listing referred to in Article 15. 5. The declaration of the basic technical characteristics shall describe how responsibilities are shared between the responsible authority and individual smallholders for the purpose of implementing Articles 9 to 11. 6. For the purpose of implementing Articles 9, 14 and 15, the responsible authority shall take appropriate measures to ensure that: (a) the physical inventory is taken by all individual smallholders comprising the national LOF and the data from the smallholders reflect the actual inventory at the date of the physical taking determined by the responsible authority; (b) the physical inventories of each individual smallholder can be identified in the physical inventory listing transmitted to the Commission; (c) the accounting reports are substantiated with the relevant operating records referred to in Article 10(1); (d) the provisions of this Regulation are effectively implemented within the scope of the national LOF. Article 38 International obligations 1. The provisions of this Regulation, and in particular Article 6(1), Article 34 and Article 35, point (c), shall be applied in conformity with the obligations of the Community and non-nuclear weapon Member States under Additional Protocol 1999/188/Euratom. 2. The provisions of this Regulation, and in particular Articles 19, 20, 23 and 24 shall be applied in conformity with NCAs in force between the Community and third countries and in such a way that the Commission can fulfil the Community obligations on nuclear materials under such NCAs. 3. The provisions of this Regulation, and in particular Articles 9 to 18, 22 to 26 and 36, shall be applied in conformity with the obligations of the Community and its Member States under any Safeguards Agreements concluded with the International Atomic Energy Agency. 20/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 CHAPTER VI Specific provisions applicable in the territory of the nuclear-weapon Member State Article 39 Specific provisions applicable in the nuclear-weapon Member State 1. This Regulation shall not apply: (a) to installations or parts of installations which have been assigned to meet defence requirements and which are situated in the territory of the nuclear-weapon Member State; nor (b) to nuclear materials which have been assigned to meet defence requirements by the nuclear-weapon Member State. 2. For nuclear materials, installations or parts of installations which are liable to be assigned to meet defence requirements and which are situated in the territory of the nuclear-weapon Member State, the extent of the application of this Regulation and the procedures under which it applies are defined in agreement between the Commission and the nuclear-weapon Member State, taking into account Article 84, second paragraph, of the Treaty. Such procedures are without prejudice to the possibility for the Commission’s inspectors to apply safeguards on the civil nuclear materials and to ensure compliance with Article 77 of the Treaty. Such procedures include provisions for installations or parts of installations under decommissioning. By way of derogation, it may be agreed, on a case-by-case basis, that specific records are presented to the Commission’s inspectors instead of the shipping documents referred to in Article 10(1)(a). 3. Notwithstanding paragraphs 1 and 2 of this Article: (a) the provisions of Articles 3(1), 4 and 8 shall apply to installations or parts of installations which at certain times are operated exclusively with nuclear materials liable to be assigned to meet defence requirements but which at other times are operated exclusively with civil nuclear materials; (b) the provisions of Articles 3(1), 4 and 8 shall apply, with exceptions for reasons of national security, to installations or parts of installations to which access could be restricted for such reasons but which produce, treat, separate, reprocess, store or use in any other way, simultaneously, both civil nuclear materials and nuclear materials assigned or liable to be assigned to meet defence requirements; (c) the provisions of Articles 2 and 7, Articles 9 to 37, paragraphs 1 and 2 of this Article and Articles 41, 42 and 43 shall apply in relation to all civil nuclear materials situated in the installations or parts of installations referred to in points (a) and (b) of this paragraph; (d) the provisions of Article 6, Article 34 and Article 35, point (c), shall not apply in the territories of the nuclear-weapon Member State. CHAPTER VII Final provisions Article 40 Confidentiality of data 1. The information obtained or handled by the Commission under this Regulation is subject to the security rules set out in Decisions (EU, Euratom) 2015/443 and (EU, Euratom) 2015/444, without prejudice to Regulation (Euratom) No 3. 2. The security of information transmission shall be in compliance with the Commission rules and Member State requirements for the transmission of such information. ELI: http://data.europa.eu/eli/dec/2025/492/oj 21/136EN OJ L, 14.3.2025 Article 41 Installations controlled from outside the Community Where an installation is controlled by a person or undertaking established outside the Community, any obligation laid down in this Regulation shall be fulfilled by the local management of that installation. Article 42 Implementation and monitoring 1. The Commission shall adopt and publish guidelines for the application of this Regulation by means of a recommendation, and, if necessary, update them in the light of the experience gained, in close consultation with the Member States, and after having obtained observations from interested parties. 2. The Commission shall evaluate the application of this Regulation within 10 years of its entry into force. It shall report on the main findings to the Council. Article 43 Repeal Regulation (Euratom) No 302/2005 is repealed with effect from the date of entry into force of this Regulation. However, Annexes III to IX and XII to XV shall be repealed with effect from… [40 months after the date of publication of this Regulation], and Annexes I, II and XI shall be repealed with effect from… [6 months after the date of publication of this Regulation]. References to the repealed Regulation shall be construed as references to this Regulation. Article 44 Entry into force This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union. Annexes III to X and XII to XV shall apply from… [40 months after the date of publication of this Regulation], and Annexes I, II, XI and XVI shall apply from… [6 months after the date of publication of this Regulation]. This Regulation shall be binding in its entirety and directly applicable in all Member States. Done at Brussels, For the Commission Member of the Commission 22/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX I QUESTIONNAIRE FOR THE DECLARATION OF THE BASIC TECHNICAL CHARACTERISTICS (BTC) OF THE INSTALLATIONS NB: 1. Considering the broad variety of installations in the Community, some questions might not be pertinent for some installations. The answer ‘not applicable’ may be given when the question is considered not pertinent in view of the particular situation of the installation. In such case, the reason why the question is considered not applicable must be briefly explained. 2. BTC declared before the entry into force of this Regulation shall remain valid until changed. 3. For declaration updates, please highlight the introduced modifications. In the case of updates, the full BTC shall be transmitted with a new version number. 4. Electronic templates for all questionnaires are made available by the Commission through a dedicated platform. 5. The declaration, duly completed and signed (digitally if possible), shall be forwarded electronically to the European Commission, Euratom Safeguards. ELI: http://data.europa.eu/eli/dec/2025/492/oj 23/136EN OJ L, 14.3.2025 ANNEX I-A POWER AND RESEARCH REACTORS Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION 1. Name of the installation (indicate usual abbreviation, if applicable). — Indicate MBA code(s) (once attributed). 2. Location, postal and email address (functional mailbox when available) and telephone number. 3. Owner (legally responsible body or individual) with contact details. 4. Operator (legally responsible body or individual) with contact details. 5. Description (main features only). 6. Purpose and type of the installation. 7. Present status (e.g. design phase, under construction, in operation, closed down and/or under decommissioning). 8. Pre-operation information Design and construction schedule dates, estimated commissioning and operation starting dates. Requested and/or approved licence dates (e.g. decision in principle, construction and expected operation licence request dates). Information on expected date of receipts of the nuclear material. Installation design drawings to be communicated as soon as these are available. 9. Normal operating mode (shift system adopted, approximate dates of operating periods in year, etc.). 10. Area layout (map showing the installation, reactor(s) and storage areas, boundaries, buildings, roads, rivers, railways, etc.). 11. Layout of installation: (a) identification of main areas (structural containment, fences and access routes); (b) incoming-material storage area; (c) reactor(s) area; (d) test and experiment area, laboratories; (e) outgoing-material storage area; (f) waste storage area. 12. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. General reactor data 13. Description of the installation (indicating main items of equipment). 14. Rated thermal and electricity output (when applicable). 24/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 15. Number of units. 16. Reactor type. 17. Type of refuelling (cycle length, on-load or off-load, percentage of fuel reloading). 18. Core enrichment range and Pu concentration (at equilibrium for on-load reactors, initial and final for off-load reactors). 19. Moderator. 20. Coolant. 21. Blanket, reflector. GENERAL ARRANGEMENTS AT THE INSTALLATION, INCLUDING THOSE RELATING TO MATERIAL USE AND HANDLING Description of nuclear material 22. Types of fresh fuel. 23. Fresh fuel enrichment (U-235) and/or Pu content (average enrichment for each type of assembly). 24. Nominal weight of fuel in elements/assemblies with design tolerances. 25. Detailed description of reactor assemblies: (a) type of fuel assemblies; (b) number of fuel assemblies, control and shim assemblies, experimental assemblies in the core, in blanket zone(s); (c) number and types of fuel rods/elements; (d) average enrichment and/or Pu content per assembly; (e) general structure; (f) geometric form; (g) overall dimensions; (h) cladding material. 26. Detailed description of each type of fresh fuel: (a) physical and chemical form of fuel; (b) nuclear material and its quantity; (c) enrichment and/or Pu content; (d) geometric form; (e) dimensions; (f) number of rods/pins per element; (g) chemical composition or main alloy constituents; (h) cladding material (thickness, composition of material, bonding). 27. Provision for pin exchange in each type of fuel assemblies. Indicate whether this is foreseen to become a routine operation. 28. Basic operational accounting units (fuel elements/assemblies, etc.). ELI: http://data.europa.eu/eli/dec/2025/492/oj 25/136EN OJ L, 14.3.2025 29. Other types of accounting units. 30. Means of nuclear material and/or fuel identification. 31. Other nuclear material and dummies (e.g. shielding, fission chambers, sources, etc.). Flow of nuclear material 32. Schematic flow sheet for nuclear material (identifying measurement points, accountability areas, inventory locations). 33. Inventory with quantity range including uranium enrichment and plutonium content, number of items in Key Measurement Points (under normal operating conditions) in: (a) fresh fuel storage; (b) reactor core; (c) spent fuel storage; (d) other locations. 34. Load factor. 35. Reactor core loading (number of elements and assemblies). 36. Refuelling requirements. 37. Burn-up, average and maximum. 38. Indicate the way to handle irradiated fuel assemblies (to be dry/wet stored or reprocessed). Handling of nuclear material 39. General arrangement for fresh fuel: (a) layout, storage plan and packaging; (b) capacity of store; (c) fuel preparation and assay room and reactor loading area, description and indication of layout and general arrangement. 40. Fuel transfer equipment (including refuelling machine). 41. Routes followed by fresh fuel, irradiated fuel, blanket and other nuclear material. 42. Reactor vessel (showing core location, access to vessel, vessel openings and fuel handling in vessel). 43. Reactor core diagram (showing general disposition, lattice, form, pitch, dimensions of core, reflector, blanket, location, shapes and dimensions of fuel elements/assemblies, control elements/assemblies, experimental elements/assemblies). 44. Number and size of channels for fuel elements or assemblies and for control elements in the core. 45. Average mean neutron flux in the core (thermal/fast). 46. Instrumentation for measuring neutron and gamma flux. 47. General arrangement for irradiated fuel: (a) layout, spent fuel storages; (b) method of storage; (c) design capacity of storage; 26/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 (d) minimum and normal cooling period prior to shipment; (e) description of irradiated fuel transport equipment and shipping cask. 48. Maximum radiation level of fuel/blanket after refuelling (dose rate at the surface and at a distance of 1 meter). 49. Methods and equipment used for handling irradiated fuel (pin removal, top nozzle) 50. Nuclear material testing area (if applicable): (a) brief description of the activities performed; (b) description of main equipment (e.g. hot cell, fuel assembly decladding and dissolving equipment); (c) description of shipping and storage containers for nuclear material and of waste and scrap packaging (e.g. to determine whether sealing is possible); (d) description of storage area for non-irradiated and irradiated nuclear material; (e) layout and general arrangement. Coolant data 51. Flow diagram (indicating mass flow, temperature and pressure at major points, etc.). Protection and safety rules 52. Specific rules for the physical access to the nuclear material for inspector information. 53. Specific radiological protection and health and safety rules for inspector compliance. NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL (NMAC) 54. The NMAC system shall be described under the following headings: (a) General Description of the accountancy system used to record and report accountancy data, including method of recording accountancy data and establishing material balance; (b) Main inventory changes Description of typical inventory changes e.g. receipts, shipments (including waste), nuclear loss and production, including a description of how these changes are determined. The corresponding operational records and source data (e.g. receiving and shipping forms, the initial recording of measurements and measurement control sheets) shall be identified; (c) Physical inventory Description of procedures, scheduled frequency, methods of operator’s inventory taking (both for the number of items as well as their nuclear material weights), including relevant assay methods and expected accuracy, access to nuclear material, possible methods for the physical verification of fresh and irradiated nuclear materials; (d) Operational and accounting records (including internal transfer forms, method of adjustment or correction, control measures and responsibility for records). Description of how these records are maintained, including when an adjustment or correction is needed, place where the records can be consulted, retention time and language; (e) Particular accounting provisions Description of particular provisions, e.g. for the designation of batch IDs and methods for preventing, detecting and timely fixing of accounting discrepancies. ELI: http://data.europa.eu/eli/dec/2025/492/oj 27/136EN OJ L, 14.3.2025 55. Provisions related to existing or foreseen containment and surveillance measures (general description in reference to floor plan and installation layout enabling to install seals, cameras, lasers, remote data transmission, etc.). 56. For each measurement point of the material balance area provide the following information, when applicable: (a) location, type, identification; (b) anticipated types of inventory changes; (c) possibility to use this measurement point for physical inventory taking; (d) physical and chemical form of nuclear material; (e) nuclear material containers and packaging; (f) sampling procedures and equipment used; (g) measurement methods and equipment used for item counting, neutron flux, power level, nuclear burn-up and production etc.; (h) source and level of accuracy; (i) technique and frequency of calibration of equipment used; (j) programme for the continuing appraisal of the accuracy of methods and techniques used; (k) method of converting source data to batch data (calculative procedures, constant used, etc.); (l) anticipated batch flow per year; (m) anticipated number of inventory batches; (n) anticipated number of items per flow; (o) type, composition and estimated quantity of nuclear material per batch (average), form of nuclear material and typical isotopic composition; (p) access to nuclear material and its location. POST- OPERATION INFORMATION 57. Decommissioning schedule dates (end of operation and of decommissioning dates). 58. Decommissioning plan, which shall include the following: (a) key events of the decommissioning plan; (b) removal and recovery of nuclear material. Provide a plan containing estimates of how, where and when nuclear material shall be recovered and/or removed (e.g. loose material consolidated into items, removal of items, recovery/removal of material from decontamination activities, and recovery/removal of nuclear material in waste) and how it shall be accounted for; (c) removing or rendering inoperable of equipment essential for the functioning of the installation, for handling or storing nuclear material. OTHER INFORMATION RELEVANT FOR THE APPLICATION OF SAFEGUARDS 59. Other optional information and drawings that the operator considers relevant to safeguarding the installation. 28/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX I-B CRITICAL AND SUB-CRITICAL INSTALLATIONS Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION 1. Name of the installation (indicate usual abbreviation, if applicable). — Indicate MBA code(s) (once attributed). 2. Location, postal and email address (functional mailbox when available) and telephone number. 3. Owner (legally responsible body or individual) with contact details. 4. Operator (legally responsible body or individual) with contact details. 5. Description (main features only). 6. Purpose and type of the installation. 7. Present status (e.g. design phase, under construction, in operation, closed down and/or under decommissioning). 8. Pre-operation information Design and construction schedule dates, estimated commissioning and operation starting dates. Requested and/or approved licence dates (e.g. decision of principle, construction and expected operation licence request dates. Information on expected date of receipts of the nuclear material. Installation design drawings to be communicated as soon as these are available. 9. Normal operating mode (shift system adopted, approximate dates of operating periods in year, etc.). 10. Area layout (map showing the installation, boundaries, buildings, roads, rivers, railways, etc.). 11. Layout of installation: (a) identification of main areas (structural containment, fences and access routes); (b) nuclear material storage area(s); (c) waste storage areas; (d) routes followed by nuclear material; (e) test and experimental areas, laboratories. 12. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. General installation data 13. Number of critical assemblies in the installation and their location. 14. Maximum expected operating power and/or neutron flux. 15. Description of the moderator, reflector, blanket and coolant. ELI: http://data.europa.eu/eli/dec/2025/492/oj 29/136EN OJ L, 14.3.2025 GENERAL ARRANGEMENTS AT THE INSTALLATION, INCLUDING THOSE RELATING TO MATERIAL USE AND HANDLING Description of nuclear material 16. Main types of nuclear material/fuel and nominal weight of nuclear material in the installation. 17. Range of fuel enrichment and Pu content. 18. Description, by means of drawings or otherwise, of fuel material (for each type): (a) chemical composition or main alloy constituents; (b) form and dimensions; (c) number of rods/pins per element; (d) enrichment; (e) nominal weight of nuclear material, with design tolerances; (f) composition of alloy, etc. 19. Cladding material (thickness, composition of material and bonding). 20. Sub-assemblies of fuel (number of fuel elements per nuclear assembly, arrangement of fuel elements in sub-assembly, configuration and nominal weight of nuclear material per sub-assembly with design tolerance). 21. Basic operational accounting unit (fuel elements/assemblies, etc.). 22. Other types of units. 23. Means of nuclear material/fuel identification. 24. Other nuclear material and dummies (briefly state material, purpose and method of use, e.g. as booster rods, shielding, fission chambers, sources). Flow of nuclear material 25. Schematic flowsheet for nuclear material (identifying measurement points, accountability areas, inventory locations, etc., for operator purposes). 26. Inventory with quantity range including uranium enrichment and plutonium content, for: (a) nuclear material storage(s); (b) core area(s); (c) assembly core(s) itself; (d) other locations. Location and handling of nuclear material (for each accountability area) 27. Core diagram (for each critical assembly showing the general disposition, core support structure, shielding and heat removal arrangements, channels for fuel elements or sub-assemblies, control rods, moderator, reflector, beam tubes, dimensions, etc.). 28. Ranges of critical mass and maximum radius. 29. Description of most common configurations. 30. Average mean neutron flux in the core (thermal/ fast). 31. Instrumentation for measuring neutron and gamma flux (accuracy and type of instruments; location of indicator and recorder). 32. Maximum radiation level outside/inside shielding at specified places (dose rate). 30/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 33. Maximum radiation level of fuel after refuelling/operation (dose rate at the surface and at a distance of 1 meter). 34. Nuclear material storage: (a) description of packaging; (b) storage plan and arrangements; (c) capacity of storage; (d) nuclear material preparation (description and identification of layout and general arrangement). 35. Routes followed by nuclear material. 36. Main equipment used for: (a) assembling and disassembling of fuel; (b) nuclear material testing; (c) nuclear material measuring. 37. Fuel transfer equipment, if any. Protection and safety rules 38. Specific rules for the physical access to the nuclear material for inspector information. 39. Specific radiological protection and health and safety rules for inspector compliance. NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL (NMAC) 40. The NMAC system shall be described under the following headings: (a) General Description of the accountancy system used to record and report accountancy data, including method of recording accountancy data and establishing material balance; (b) Main inventory changes Description of typical inventory changes e.g. receipts and shipments, including a description of how these changes are determined. Corresponding operational records and source data (e.g. receiving and shipping forms, the initial recording of measurements and measurement control sheets) shall be identified; (c) Physical inventory Description of procedures, scheduled frequency, methods of operator’s inventory taking (both for the number of items as well as their nuclear material weights), including relevant assay methods and expected accuracy, access to nuclear material, possible methods for the physical verification of fresh and irradiated nuclear materials; (d) Operational and accounting records (including internal transfer forms, method of adjustment or correction, control measures and responsibility for records). Description of how these records are maintained, including when an adjustment or correction is needed, place where the records can be consulted, retention time and language; (e) Particular accounting provisions Description of particular provisions, e.g. for the designation of batch IDs and methods for preventing, detecting and timely fixing of accounting discrepancies. 41. Frequency of core disassembling to permit the verification of contained nuclear material. ELI: http://data.europa.eu/eli/dec/2025/492/oj 31/136EN OJ L, 14.3.2025 42. Provisions related to existing or foreseen containment and surveillance measures (general description in reference to floor plan and installation layout enabling to install seals, cameras, lasers, remote data transmission, etc.). 43. For each measurement point of the material balance area provide the following information, when applicable: (a) description of location, type, identification; (b) anticipated types of inventory change; (c) possibilities to use this measurement point for physical inventory taking; (d) physical and chemical form of nuclear material (with cladding materials description); (e) nuclear material containers, packaging; (f) sampling procedure and equipment used; (g) measurement method(s) and equipment used; (h) source and level of random and systematic errors (measurements); (i) technique and frequency of calibration of equipment used; (j) method of converting source data to batch data; (k) means of batch identification; (l) anticipated batch flow rate per year; (m) anticipated number of inventory batches; (n) anticipated number of items per flow; (o) type, composition and quantity of nuclear material per batch, total weight of nuclear material in item, the isotopic composition when appropriate and form of nuclear material. POST- OPERATION INFORMATION 44. Decommissioning schedule dates (end of operation and of decommissioning dates). 45. Decommissioning plan, which shall include the following: (a) key events of the decommissioning plan; (b) removal and recovery of nuclear material. Provide a plan containing estimates of how, where and when nuclear material shall be recovered and/or removed (e.g. loose material consolidated into items, removal of items, recovery/removal of material from decontamination activities, and recovery/removal of nuclear material in waste) and how it shall be accounted for; (c) removing or rendering inoperable of equipment essential for the functioning of the installation, for handling or storing nuclear material. OTHER INFORMATION RELEVANT FOR THE APPLICATION OF SAFEGUARDS 46. Other optional information that the operator considers relevant to safeguarding the installation. 32/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX I-C CONVERSION AND FUEL FABRICATION INSTALLATIONS Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION 1. Name of the installation (indicate usual abbreviation, if applicable). — Indicate MBA code(s) (once attributed). 2. Location, postal and email address (functional mailbox when available) and telephone number. 3. Owner (legally responsible body or individual) with contact details. 4. Operator (legally responsible body or individual) with contact details. 5. Description (main features only). 6. Purpose and type of the installation. 7. Present status (e.g. design phase, under construction, in operation, closed down and/or under decommissioning). 8. Pre-operation information Design and construction schedule dates, estimated commissioning and operation starting dates. Requested and/or approved licence dates (e.g. decision of principle, construction and expected operation licence request dates). Information on expected date of receipts of the nuclear material. Installation design drawings to be communicated as soon as these are available. 9. Normal operating mode (shift system adopted, approximate dates of operating periods in year, etc.). 10. Area layout (map showing the installation, boundaries, buildings, roads, rivers, railways, etc.). 11. Layout of installation: (a) structural containment, fences and access routes; (b) containment of certain parts of the installation; (c) routes followed by nuclear material; (d) nuclear material storage areas; (e) each main processing area and process laboratory; (f) test or experimental areas; (g) waste storage area; (h) analytical laboratory. 12. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. ELI: http://data.europa.eu/eli/dec/2025/492/oj 33/136EN OJ L, 14.3.2025 Overall process parameters 13. Description of the installation (indicating main items of equipment). 14. Process description (indicating type of conversion, method of fabrication, sampling methods, etc., indicating also the modification of physical and chemical forms). 15. Design capacity (in weight of principal products per year). 16. Anticipated throughput (in the form of a forward programme indicating proportion of various feeds and products). 17. Other important items of equipment using, producing or processing nuclear material (such as testing and experimental equipment). GENERAL ARRANGEMENTS AT THE INSTALLATION, INCLUDING THOSE RELATING TO MATERIAL USE AND ACCOUNTANCY, CONTAINMENT AND SURVEILLANCE Description of nuclear material 18. Main material description (feed, intermediate product, product): (a) chemical and physical form (for product include types of fuel element/assemblies, give detailed description indicating general structure and overall structure and overall dimensions of fuel element/assemblies, including nuclear material content and enrichment); (b) throughput, enrichment ranges and Pu contents (for normal flowsheet operation indicating if blending and/or recycling takes place); (c) batch size/flow rate and campaign period, means of batch identification; (d) maximum value of storage/plant inventory; (e) frequency of receipt or shipment (batches/units per month). 19. Scrap material. 20. Waste material (including contaminated equipment and retained waste). For each waste stream, description of: (a) major contributions (sources); (b) types of waste; (c) chemical and physical form (liquid, solid, etc.); (d) estimated enrichment ranges and uranium/plutonium content; (e) estimated quantities per year, period of storing; (f) waste generated rates (as % of input/ throughput, quantities per month); (g) store inventory range and maximum capacity; (h) method and frequency of recovery/discharge. 21. Waste treatment system (attach diagrams). 22. Other nuclear material in the installation and its location, if any. 23. Schematic flowsheet for nuclear material (identifying sampling points, flow and inventory measurement points, accountability areas, inventory locations, etc.). 24. Types, form, ranges of nuclear material content (including enrichment, as applicable), ranges of quantities of nuclear material flow for each nuclear material handling area. 34/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 25. Recycle processes (brief description of any such processes giving source and form of material, method of storage, normal inventory, frequency of processing, duration of temporary storage, schedules for any external recycling, measurement method of fissile content of recycle material). 26. Maximum capacity: (a) in-process (within plant and equipment during normal operation, indicate quantity, range of enrichment, Pu content, form and principal locations and any significant change in time or throughput; indicate anticipated residual hold-up and mechanism, e.g. plate out, condensation); (b) feed and product storages; (c) other locations (quantity, range of enrichment, Pu content, form and location of inventory not already specified). Handling of nuclear material 27. Containers, packaging and storage area description. Describe for feeds, products and wastes: the type and size of storage and shipping containers and packaging used (including nominal capacity and capacity for normal operation, and type of material); method of storage or packing, filling and emptying procedures, shielding; and any special identification features. 28. Methods and means of transfer of nuclear material (describe also equipment used for handling of feed, product, waste). 29. Transportation routes followed by nuclear material (with reference to plant layout). 30. Shielding (for storage, transfer and process area). Maintenance of the installation 31. Maintenance, decontamination, clean-out (in cases where clean-out and/or sampling is not possible, indicate how the hold-up of nuclear material is measured or calculated): (a) normal maintenance of the installation; (b) installation and equipment decontamination and subsequent nuclear material recovery; (c) installation and equipment clean-out including means of ensuring vessels are empty; (d) installation start-up and plant shut-down (if different from normal operation). Protection and safety rules 32. Specific rules for the physical access to the nuclear material for inspector information. 33. Specific radiological protection and health and safety rules for inspector compliance (if extensive, attach separately). NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL (NMAC) 34. Description of the NMAC system, the method of recording and reporting accountancy data and establishing material balances, frequency of physical inventory takings, procedures for account adjustment after plant inventory, mistakes, etc., under the following headings: (a) General Source data (e.g. shipping and receiving forms, internal transfer documents, physical inventory forms, the initial recording of measurements and measurement control sheets). Procedures for making adjustments and corrections (indicating how the adjustments are authorized and substantiated); (b) Receipts (including method of dealing with shipper/receiver differences and subsequent accounting corrections; checks and measurements used to confirm nuclear material content); (c) Shipments (products, waste); ELI: http://data.europa.eu/eli/dec/2025/492/oj 35/136EN OJ L, 14.3.2025 (d) Transfers to retained waste (method of establishing quantities, method and envisaged period of storage, possible subsequent uses of retained waste); (e) Discards to the environment (method of establishing quantities, method of discharge); (f) Other inventory changes, e.g. transfers to conditioned waste, unmeasured losses (method of establishing quantities); (g) Physical inventory Description of procedures, scheduled frequency, estimated distribution of nuclear material, methods of operator’s inventory taking (both for the number of items as well as their nuclear material weights, including relevant assay method), accessibility and possible verification method for nuclear material, expected accuracy, and access to nuclear material. In particular the description of procedures shall also provide the basic inventory approach to be used, i.e. planning, organizing, and conducting the inventory taking, primary responsibility for inventory taking, process clean-out, accountancy of process residual hold-up; (h) Operational and accounting records (including internal transfer forms, method of adjustment or correction, control measures and responsibility for records). Description of how these records are maintained, including when an adjustment or correction is needed, place where the records can be consulted, retention time and language; (i) Particular accounting provisions Description of particular provisions, e.g. for the designation of batch IDs and methods for preventing, detecting and timely fixing of accounting discrepancies. 35. Features related to containment and surveillance measures (general description of applied or possible measures in reference to floor plan or plant layout). 36. For each flow and inventory measurement point, and sampling points of accountability areas, give the following: (a) description of location, type, identification; (b) expected types of inventory change at this measurement point and possibility to use this measurement point for physical inventory taking; (c) physical and chemical form of nuclear material (including enrichment range, Pu content, and cladding materials description); (d) nuclear material containers, packaging and method of storage; (e) sampling procedure and equipment used (including number of samples taken, frequency and rejection criteria); (f) measurement/analytical method(s) and equipment used and corresponding accuracies; (g) source and level of random and systematic errors for feed, product, scrap, waste (weight, volume, sampling, analytical); (h) calculative and error propagation techniques; (i) technique and frequency of calibration of equipment used, and standards used; (j) programme for the continuing appraisal of the accuracy of weight, volume, sampling and analytical techniques and measurement methods; (k) programme for statistical evaluation of data from (i) and (j); (l) means of batch identification; (m) anticipated batch flow rate per year; (n) anticipated number of inventory batches; 36/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 (o) anticipated number of items per flow and inventory batches; (p) type, composition and quantity of nuclear material per batch (with indication of batch data, total weight of each element of nuclear material and form of nuclear material); (q) features related to containment-surveillance measures. 37. Overall limit of error. Describe procedures to combine individual measurement error determination to obtain the overall limit of error for: (a) shipper/receiver differences; (b) book inventory; (c) physical inventory; (d) material unaccounted for (MUF). POST- OPERATION INFORMATION 38. Decommissioning schedule dates (end of operation and of decommissioning dates). 39. Decommissioning plan, which shall include the following: (a) key events of the decommissioning plan; (b) removal and recovery of nuclear material. Provide a plan containing estimates of how, where and when nuclear material shall be recovered and/or removed (e.g. loose material consolidated into items, removal of items, recovery/removal of material from decontamination activities, and recovery/removal of nuclear material in waste) and how it shall be accounted for; (c) removing or rendering inoperable of equipment essential for the functioning of the installation, for handling or storing nuclear material. OTHER INFORMATION RELEVANT FOR THE APPLICATION OF SAFEGUARDS 40. Other optional information that the operator considers relevant to safeguarding the installation. ELI: http://data.europa.eu/eli/dec/2025/492/oj 37/136EN OJ L, 14.3.2025 ANNEX I-D REPROCESSING INSTALLATIONS Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION 1. Name of the installation (indicate usual abbreviation, if applicable). — Indicate MBA code(s) (once attributed). 2. Location, postal and email address (functional mailbox when available) and telephone number. 3. Owner (legally responsible body or individual) with contact details. 4. Operator (legally responsible body or individual) with contact details. 5. Description (main features only). 6. Purpose and type of the installation. 7. Present status (e.g. design phase, under construction, in operation, closed down and/or under decommissioning). 8. Pre-operation information Design and construction schedule dates, estimated commissioning and operation starting dates. Requested and/or approved licence dates (e.g. decision of principle, construction and expected operation licence request dates). Information on expected date of receipts of the nuclear material and/or fuel assemblies. Installation design drawings to be communicated as soon as these are available. 9. Normal operating mode (shift system adopted, approximate dates of operating periods in year. 10. Area layout (map showing the installation, boundaries, buildings, roads, rivers, railways, etc.). 11. Layout of installation: (a) structural containment, fences and access routes; (b) containment of certain parts of the installation; (c) routes followed by nuclear material; (d) nuclear material storage areas; (e) each main processing area and process laboratory; (f) test or experimental areas; (g) waste storage area; (h) analytical laboratory. 12. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. 38/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 Overall process parameters 13. Description of the installation (indicating main items of equipment). 14. Process description (also indicating the modification of physical and chemical forms). 15. Design capacity (in weight of principal products per year). 16. Anticipated throughput (in the form of a forward programme indicating proportion of various feeds and products). 17. Other important items of equipment using, producing or processing nuclear material (such as testing and experimental equipment). GENERAL ARRANGEMENTS AT THE INSTALLATION, INCLUDING THOSE RELATING TO MATERIAL USE AND ACCOUNTANCY, CONTAINMENT AND SURVEILLANCE Description of nuclear material 18. Main material description (feed, product (U, Pu)): (a) chemical and physical form (for feed include types of fuel elements/assemblies, give detailed description indicating general structure and overall structure and overall dimensions of fuel elements/assemblies, including nuclear material content and enrichment); (b) throughput, enrichment ranges and Pu contents (for normal flowsheet operation indicating if blending and/or recycling takes place); (c) batch size/flow rate and campaign period, means of batch identification; (d) storage and plant inventory (indicating any change with throughput); (e) frequency of receipt or shipment (batches/units per month). 19. Waste material (including contaminated equipment and retained waste). For each waste stream, description of: (a) major contributions (sources); (b) types of waste after waste processing; (c) chemical and physical form (liquid, solid, etc.) of waste feeds, waste in intermediate storage and waste product after processing; (d) for each material in point (c), uranium content and its enrichment ranges, plutonium content; (e) estimated quantities per year, period of storing; (f) waste generated rates (as % of input/ throughput, quantities per month); (g) store inventory range and maximum capacity; (h) method and frequency of recovery/discharge. 20. Waste treatment system (attach diagrams). 21. Other nuclear material in the installation and its location, if any. 22. Schematic flowsheet for nuclear material (identifying sampling points, flow and inventory measurement points, accountability areas, inventory locations, etc.). 23. Types, form, ranges of nuclear material content (including enrichment, as applicable), ranges of quantities of nuclear material flow for each nuclear material handling area. ELI: http://data.europa.eu/eli/dec/2025/492/oj 39/136EN OJ L, 14.3.2025 24. Recycle processes (brief description of any such processes giving source and form of material, method of storage, normal inventory, frequency of processing, duration of temporary storage, schedules for any external recycling, measurement method of fissile content of recycle material). 25. Maximum capacity: (a) in-process (within plant and equipment during normal operation, indicate quantity, range of enrichment, Pu content, form and principal locations and any significant change in time or throughput; indicate anticipated residual hold-up and mechanism, e.g. plate out, condensation); (b) feed and product storages; (c) other locations (quantity, range of enrichment, Pu content, form and location of inventory not already specified). Handling of nuclear material 26. Containers, packaging and storage area description. Description for feeds, products and wastes of the type and size of storage and shipping containers and packaging used (including nominal capacity and capacity for normal operation, and type of material). Description of storage, packing, filling and emptying procedures. 27. Methods and means of transfer of nuclear material (describe also equipment used for handling of feed, product, waste). 28. Transportation routes followed by nuclear material (with reference to plant layout). 29. Shielding (for storage and transfer). Maintenance of the installation 30. Maintenance, decontamination, clean-out (in cases where clean-out and/or sampling is not possible, indicate how the hold-up of nuclear material is measured or calculated): (a) normal maintenance of the installation; (b) installation and equipment decontamination and subsequent nuclear material recovery; (c) installation and equipment clean-out including means of ensuring vessels are empty; (d) installation start-up and plant shut-down (if different from normal operation). Protection and safety rules 31. Specific rules for the physical access to the nuclear material for inspector information. 32. Specific radiological protection and health and safety rules for inspector compliance (if extensive, attach separately). NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL (NMAC) 33. Description of the NMAC system, the method of recording and reporting accountancy data and establishing material balances, frequency of physical inventory takings, procedures for account adjustment after plant inventory, mistakes, etc., under the following headings: (a) General Source data (e.g. shipping and receiving forms, internal transfer documents, physical inventory forms, the initial recording of measurements and measurement control sheets). Procedures for making adjustments and corrections (indicating how the adjustments are authorized and substantiated); (b) Receipts (including method of dealing with shipper/receiver differences and subsequent accounting corrections; checks and measurements used to confirm nuclear material content); (c) Shipments (products, waste); 40/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 (d) Transfers to retained waste (method of establishing quantities, method and envisaged period of storage, possible subsequent uses of retained waste); (e) Discards to the environment (method of establishing quantities, method of discharge); (f) Other inventory changes, e.g. transfers to conditioned waste, unmeasured losses (method of establishing quantities); (g) Physical inventory Description of procedures, scheduled frequency, estimated distribution of nuclear material, methods of operator’s inventory taking (both for the number of items as well as their nuclear material weights, including relevant assay method), accessibility and possible verification method for nuclear material, expected accuracy, and access to nuclear material. In particular the description of procedures shall also provide the basic inventory approach to be used, i.e. planning, organizing, and conducting the inventory taking, primary responsibility for the inventory, process clean-out, accountancy of process residual hold-up; (h) Operational and accounting records (including internal transfer forms, method of adjustment or correction, control measures and responsibility for records). Description of how these records are maintained, including when an adjustment or correction is needed, place where the records can be consulted, retention time and language; (i) Particular accounting provisions Description of particular provisions, e.g. for the designation of batch IDs and methods for preventing, detecting and timely fixing of accounting discrepancies. 34. Features related to containment and surveillance measures (general description of applied or possible measures in reference to floor plan or plant layout). 35. For each flow and inventory measurement point, and sampling points of accountability areas, provide the following information, when applicable: (a) description of location, type, identification; (b) expected types of inventory change at this measurement point and possibility to use this measurement point for physical inventory taking; (c) physical and chemical form of nuclear material (including enrichment range, Pu content, and cladding materials description); (d) nuclear material containers, packaging and method of storage; (e) sampling procedure and equipment used (including number of samples taken, frequency and rejection criteria); (f) measurement/analytical method(s) and equipment used and corresponding accuracies; (g) source and level of random and systematic errors for feed, product, scrap, waste (weight, volume, sampling, analytical); (h) calculative and error propagation techniques; (i) technique and frequency of calibration of equipment used, and standards used; (j) programme for the continuing appraisal of the accuracy of weight, volume, sampling and analytical techniques and measurement methods; (k) programme for statistical evaluation of data from (i) and (j); (l) means of batch identification; (m) anticipated batch flow rate per year; (n) anticipated number of inventory batches; ELI: http://data.europa.eu/eli/dec/2025/492/oj 41/136EN OJ L, 14.3.2025 (o) anticipated number of items per flow and inventory batches; (p) type, composition and quantity of nuclear material per batch (with indication of batch data, total weight of each element of nuclear material and form of nuclear material); (q) features related to containment-surveillance measures. 36. Overall limit of error. Describe procedures to combine individual measurement error determination to obtain the overall limit of error for: (a) shipper/receiver differences; (b) book inventory; (c) physical inventory; (d) material unaccounted for (MUF). POST- OPERATION INFORMATION 37. Decommissioning schedule dates (end of operation and of decommissioning dates). 38. Decommissioning plan, which shall include the following: (a) key events of the decommissioning plan; (b) removal and recovery of nuclear material. Provide a plan containing estimates of how, where and when nuclear material shall be recovered and/or removed (e.g. loose material consolidated into items, removal of items, recovery/removal of material from decontamination activities, and recovery/removal of nuclear material in waste) and how it shall be accounted for; (c) removing or rendering inoperable of equipment essential for the functioning of the installation, for handling or storing nuclear material. OTHER INFORMATION RELEVANT FOR THE APPLICATION OF SAFEGUARDS 39. Other optional information that the operator considers relevant to safeguarding the installation. 42/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX I-E ISOTOPE ENRICHMENT INSTALLATIONS Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION 1. Name of the installation (indicate usual abbreviation, if applicable) — Indicate MBA code(s) (once attributed). 2. Location, postal and email address (functional mailbox when available) and telephone number. 3. Owner (legally responsible body or individual) with contact details. 4. Operator (legally responsible body or individual) with contact details. 5. Description (main features only). 6. Purpose and type of the installation. 7. Present status (e.g. design phase, under construction, in operation, closed down and/or under decommissioning). 8. Pre-operation information Design and construction schedule dates, estimated commissioning and operation starting dates. Requested and/or approved licence dates (e.g. decision of principle, construction and expected operation licence request dates). Information on expected date of receipts of the nuclear material and/or fuel assemblies. Installation design drawings to be communicated as soon as these are available. 9. Normal operating mode (shift system adopted, approximate dates of operating periods in year. 10. Area layout (map showing the installation, boundaries, buildings, roads, rivers, railways, etc.). 11. Layout of installation: (a) structural containment, fences and access routes; (b) containment of certain parts of the installation; (c) routes followed by nuclear material; (d) nuclear material storage areas; (e) each main processing area and process laboratory; (f) test or experimental areas; (g) waste storage area; (h) analytical laboratory. 12. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. ELI: http://data.europa.eu/eli/dec/2025/492/oj 43/136EN OJ L, 14.3.2025 Overall process parameters 13. Description of the installation (indicating main items of equipment). 14. Process description (identifying sampling and key measurement points, MBAs, inventory locations). 15. Design capacity (throughput and energy consumption). 16. Anticipated throughput (in the form of a forward programme indicating proportion of various feeds and products). 17. Other important items of equipment using, producing or processing nuclear material (such as testing and experimental equipment). GENERAL ARRANGEMENTS AT THE INSTALLATION, INCLUDING THOSE RELATING TO MATERIAL USE AND ACCOUNTANCY, CONTAINMENT AND SURVEILLANCE Description of nuclear material 18. Main material description (feed, product, tails): (a) chemical and physical form; (b) throughput and enrichment ranges (for normal flowsheet operation indicating if blending and/or recycling takes place); (c) batch size/flow rate and campaign period; (d) maximum capability as concentration of top product (nat. U feed); (e) storage inventory; (f) frequency of receipt or shipment. 19. Waste material: (a) source and form (indicating major contributors; liquid or solid; range of constituents; enrichment range; include contaminated equipment); (b) storage inventory range, method and frequency of recovery/discharge. 20. Container and storage area descriptions. 21. Discards to the environment, conditioned waste and retained waste as % of input. 22. In-process inventory (within plant and equipment during normal operation; indicate quantity, form and main location and any significant change with time or throughput). Maintenance of the installation 23. Maintenance, decontamination, clean-out: (a) normal maintenance of the installation; (b) installation and equipment decontamination and subsequent nuclear material recovery; (c) installation and equipment clean-out including means of ensuring vessels are empty. Protection and safety rules 24. Specific rules for the physical access to the nuclear material for inspector information. 25. Specific radiological protection and health and safety rules for inspector compliance (if extensive, attach separately). 44/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL (NMAC) 26. Description of the NMAC system, the method of recording and reporting accountancy data and establishing material balances, frequency of physical inventory takings, procedures for account adjustment after plant inventory, mistakes, etc., under the following headings: (a) General Source data (e.g. shipping and receiving forms, internal transfer documents, physical inventory forms, the initial recording of measurements and measurement control sheets). Procedures for making adjustments and corrections (indicating how the adjustments are authorized and substantiated); (b) Receipts (including method of dealing with shipper/receiver differences and subsequent accounting corrections; checks and measurements used to confirm nuclear material content); (c) Shipments (products, waste); (d) Transfers to retained waste (method of establishing quantities, method and envisaged period of storage, possible subsequent uses of retained waste); (e) Discards to the environment (method of establishing quantities, method of discharge); (f) Other inventory changes, e.g. transfers to conditioned waste, unmeasured losses (method of establishing quantities); (g) Physical inventory Description of procedures, scheduled frequency, estimated distribution of nuclear material, methods of operator’s inventory taking (both for the number of items as well as their nuclear material weights, including relevant assay method), accessibility and possible verification method for nuclear material, expected accuracy, and access to nuclear material. In particular the description of procedures shall also provide the basic inventory approach to be used, i.e. planning, organizing, and conducting the inventory taking, primary responsibility for the inventory, process clean-out, accountancy of process residual hold-up; (h) Operational and accounting records (including internal transfer forms, method of adjustment or correction, control measures and responsibility for records). Description of how these records are maintained, including when an adjustment or correction is needed, place where the records can be consulted, retention time and language; (i) Particular accounting provisions Description of particular provisions, e.g. for the designation of batch IDs and methods for preventing, detecting and timely fixing of accounting discrepancies. 27. Features related to containment and surveillance measures (general description of applied or possible measures in reference to floor plan or plant layout). 28. For each key measurement point provide the following information, when applicable: (a) description of location, type, identification; (b) expected types of inventory change at this measurement point and possibility to use this measurement point for physical inventory taking; (c) chemical and physical form of material; (d) sampling procedure and equipment used; (e) measurement/analytical method and equipment used; (f) source and level of random and systematic errors (weighing, volume, sampling, analytical); (g) calculative and error propagation technique; ELI: http://data.europa.eu/eli/dec/2025/492/oj 45/136EN OJ L, 14.3.2025 (h) technique and frequency of calibration of equipment used; (i) programme for the continuing appraisal of the accuracy of weight, volume, sampling techniques and measurement methods; (j) programme for statistical evaluation of data from (h) and (i). 29. Overall limit of error. Describe procedures to combine individual measurement error determination to obtain the overall limit of error for: (a) shipper/receiver differences; (b) book inventory; (c) physical inventory; (d) material unaccounted for (MUF). POST- OPERATION INFORMATION 30. Decommissioning schedule dates (End of operation and of decommissioning dates). 31. Decommissioning plan, which shall include the following: (a) key events of the decommissioning plan; (b) removal and recovery of nuclear material. Provide a plan containing estimates of how, where and when nuclear material shall be recovered and/or removed (e.g. loose material consolidated into items, removal of items, recovery/removal of material from decontamination activities, and recovery/removal of nuclear material in waste) and how it shall be accounted for; (c) removing or rendering inoperable of equipment essential for the functioning of the installation, for handling or storing nuclear material. OTHER INFORMATION RELEVANT FOR THE APPLICATION OF SAFEGUARDS 32. Other optional information that the operator considers relevant to safeguarding the installation. 46/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX I-F RESEARCH AND DEVELOPMENT (R & D) INSTALLATIONS Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION 1. Name of the installation (indicate usual abbreviation, if applicable). — Indicate MBA code(s) (once attributed). 2. Location, postal and email address (functional mailbox when available) and telephone number. 3. Owner (legally responsible body or individual) with contact details. 4. Operator (legally responsible body or individual) with contact details. 5. Description (main features only). 6. Purpose and type of the installation. 7. Present status (e.g. design phase, under construction, in operation, closed down and/or under decommissioning). 8. Pre-operation information Design and construction schedule dates, estimated commissioning and operation starting dates. Requested and/or approved licence dates (e.g. decision of principle, construction and expected operation licence request dates). Information on expected date of receipts of the nuclear material. Installation design drawings to be communicated as soon as these are available. 9. Normal operating mode (shift system adopted, approximate dates of operating periods in year, etc.). 10. Area layout (map showing the installation, boundaries, buildings, roads, rivers, railways, etc.). 11. Layout of installation: (a) identification of main areas (structural containment, fences and access routes); (b) nuclear material storage areas; (c) waste storage area; (d) routes followed by nuclear material; (e) test and experiment area, laboratories. 12. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. General installation data 13. Description of the installation (with indication of accountability areas). 14. Estimated total inventory per location and per category. 15. Anticipated annual throughput per category. ELI: http://data.europa.eu/eli/dec/2025/492/oj 47/136EN OJ L, 14.3.2025 16. Description of the use of nuclear material. 17. Important items of equipment which use, produce or process nuclear material. GENERAL ARRANGEMENTS AT THE INSTALLATION, INCLUDING THOSE RELATING TO MATERIAL USE AND HANDLING Description of nuclear material 18. Main types of accounting units to be handled in the installation. 19. Description, by means of drawings or otherwise, of all nuclear material for each accountability area, showing: (a) chemical and physical form (with cladding materials description); (b) range of enrichment and Pu content; (c) estimated nominal weight of nuclear material. 20. Waste material: (a) source and form (indicating major contributors; liquid or solid; range of constituents, range of enrichment and Pu content including contaminated equipment); (b) quantities in storage and at other locations; (c) method and frequency of recovery/discharge. 21. Other nuclear material, not previously mentioned, and its location. 22. Means of nuclear material identification. 23. Range of radiation levels at nuclear material locations (dose rates at specified places). Flow of nuclear material 24. Schematic flowsheet for nuclear material (identifying measurement points, accountability areas, inventory locations, etc., for operator purposes). 25. Types, form and range of quantities of nuclear material in operation areas, storage area and other locations (average data for each location). Location and handling of nuclear material (for each accountability area) 26. Description of each nuclear material storage area (indicating capacity, anticipated inventory and throughput, etc.). 27. Maximum quantity of nuclear material to be handled in accountability areas. 28. Modification of the physical/chemical form during operation. 29. Nuclear material transfer. 30. Frequency of receipt and shipment. 31. Nuclear material transfer equipment (if applicable). 32. Description of containers used for storage and handling. 33. Routes followed by nuclear material. 34. Shielding (for storage and transfer). Protection and safety rules 35. Specific rules for the physical access to the nuclear material for inspector information. 48/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 36. Specific radiological protection and health and safety rules for inspector compliance. NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL (NMAC) 37. The NMAC system shall be described under the following headings: (a) General Description of the accountancy system used to record and report accountancy data, including method of recording accountancy data and establishing material balance; (b) Main inventory changes Description of typical inventory changes e.g. receipts (including method of dealing with the shipper/receiver differences and subsequent accounting corrections), shipments and waste related inventory changes, including a description of how these changes are determined. Corresponding operational records and source data (e.g. receiving and shipping forms, the initial recording of measurements and measurement control sheets) shall be identified; (c) Physical inventory Description of procedures, scheduled frequency, methods of operator’s inventory taking (both for the number of items as well as their nuclear material weights), including relevant assay methods and expected accuracy, access to nuclear material, possible methods for the physical verification of fresh and irradiated nuclear materials; (d) Operational and accounting records (including internal transfer forms, method of adjustment or correction, control measures and responsibility for records). Description of how these records are maintained, including when an adjustment or correction is needed, place where the records can be consulted, retention time and language; (e) Particular accounting provisions Description of particular provisions, e.g. for the designation of batch IDs and methods for preventing, detecting and timely fixing of accounting discrepancies. 38. Provisions related to existing or foreseen containment and surveillance measures (general description in reference to floor plan and installation layout enabling to install seals, cameras, lasers, remote data transmission, etc.). 39. For each measurement point of the material balance area, provide the following information, when applicable: (a) description of location, type, identification; (b) anticipated types of inventory change; (c) possibility to use this measurement point for physical inventory taking; (d) physical and chemical form of nuclear material (with cladding materials description); (e) nuclear material containers, packaging; (f) sampling procedure and equipment used; (g) measurement method(s) and equipment used; (h) source and level of random and systematic errors (weight, volume, sampling, non-destructive assay); (i) technique and frequency of calibration of equipment used; (j) method of converting source data to batch data; (k) means of batch identification; ELI: http://data.europa.eu/eli/dec/2025/492/oj 49/136EN OJ L, 14.3.2025 (l) anticipated batch flow rate per year; (m) anticipated number of inventory batches; (n) anticipated number of items per flow; (o) type, composition and quantity of nuclear material per batch, total weight of nuclear material in item, the isotopic composition when appropriate and form of nuclear material. POST- OPERATION INFORMATION 40. Decommissioning schedule dates (end of operation and of decommissioning dates). 41. Decommissioning plan, which shall include the following: (a) key events of the decommissioning plan; (b) removal and recovery of nuclear material. Provide a plan containing estimates of how, where and when nuclear material will be recovered and/or removed (e.g. loose material consolidated into items, removal of items, recovery/removal of material from decontamination activities, and recovery/removal of nuclear material in waste) and how it will be accounted for; (c) removing or rendering inoperable of equipment essential for the functioning of the installation, for handling or storing nuclear material. OTHER INFORMATION RELEVANT FOR THE APPLICATION OF SAFEGUARDS 42. Other optional information that the operator considers relevant to safeguarding the installation. 50/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX I-G STORAGE INSTALLATIONS Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION 1. Name of the installation (indicate usual abbreviation, if applicable). — Indicate MBA code(s) (once attributed). 2. Location, postal and email address (functional mailbox when available) and telephone number. 3. Owner (legally responsible body or individual) with contact details. 4. Operator (legally responsible body or individual) with contact details. 5. Description (main features only). 6. Purpose and type of the installation. 7. Present status (e.g. design phase, under construction, in operation, closed down and/or under decommissioning). 8. Pre-operation information Design and construction schedule dates, estimated commissioning and operation starting dates. Requested and/or approved licence dates (e.g. decision of principle, construction and expected operation licence request dates). Information on expected date of receipts of the nuclear material. Installation design drawings to be communicated as soon as these are available. 9. Normal operating mode (shift system adopted, approximate dates of operating periods in year, etc.). 10. Area layout (map showing the installation, boundaries, buildings, roads, rivers, railways, etc.). 11. Layout of installation: (a) identification of main areas (structural containment, fences and access routes); (b) nuclear material storage areas; (c) waste storage area; (d) routes followed by nuclear material; (e) test and experiment area, laboratories. 12. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. General storage data 13. Description of the installation (indicating main items of equipment for each storage area). 14. Design capacity. 15. Anticipated annual throughput and inventory. ELI: http://data.europa.eu/eli/dec/2025/492/oj 51/136EN OJ L, 14.3.2025 GENERAL ARRANGEMENTS AT THE INSTALLATION, INCLUDING THOSE RELATING TO MATERIAL USE AND HANDLING Description of nuclear material 16. Description of the use of nuclear material. 17. Description, by means of drawings or otherwise, of all nuclear material in the installation, showing: (a) all types of items handled at the installation; (b) chemical composition or main alloy constituents; (c) form and dimensions; (d) range of enrichment and Pu content; (e) nominal weight of nuclear material, with design tolerances; (f) cladding materials; (g) methods of identifying items; (h) range of radiation levels at nuclear material location (dose rates at specified locations). Flow of nuclear material 18. Schematic flow sheet for nuclear material (identifying measurement points, accountability areas, inventory locations, etc., for operator purposes). Location and handling of nuclear material 19. Description of each nuclear material storage area (inventory locations). 20. Estimated range of inventories of nuclear material in each storage area. 21. Method of positioning of nuclear material in storage. 22. Routes and equipment used for handling and movement of nuclear material. 23. Frequency of receipt and shipment. 24. Nuclear material storage and/or shipping containers and shielding. Protection and safety rules 25. Specific rules for the physical access to the nuclear material for inspector information. 26. Specific radiological protection and health and safety rules for inspector compliance. NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL (NMAC) 27. The NMAC system shall be described under the following headings: (a) General Description of the accountancy system used to record and report accountancy data, including method of recording accountancy data and establishing material balance; (b) Main inventory changes Description of typical inventory changes e.g. receipts (including method of dealing with the shipper/receiver differences and subsequent accounting corrections), shipments and waste related inventory changes, including a description of how these changes are determined. Corresponding operational records and source data (e.g. receiving and shipping forms, the initial recording of measurements and measurement control sheets) shall be identified; 52/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 (c) Physical inventory Description of procedures, scheduled frequency, methods of operator’s inventory taking (both for the number of items as well as their nuclear material weights), including relevant assay methods and expected accuracy, access to nuclear material, possible methods for the physical verification of fresh and irradiated nuclear materials; (d) Operational and accounting records (including internal transfer forms, method of adjustment or correction, control measures and responsibility for records). Description of how these records are maintained, including when an adjustment or correction is needed, place where the records can be consulted, retention time and language; (e) Particular accounting provisions Description of particular provisions, e.g. for the designation of batch IDs and methods for preventing, detecting and timely fixing of accounting discrepancies. 28. Provisions related to existing or foreseen containment and surveillance measures (general description in reference to floor plan and installation layout enabling to install seals, cameras, lasers, remote data transmission, etc.). 29. For each measurement point of the material balance area, provide the following information, when applicable: (a) description of location, type, identification; (b) anticipated types of inventory changes; (c) possibility to use this measurement point for physical inventory taking; (d) physical and chemical form of nuclear material; (e) nuclear material containers; (f) sampling procedures and equipment used; (g) measurement methods and equipment; (h) source and level of random and systematic errors (weight, volume, sampling, non-destructive assay); (i) technique and frequency of calibration of equipment used; (j) method of converting source data to batch data; (k) means of batch identification; (l) anticipated batch flow per year; (m) anticipated number of inventory batches with related storage capacity; (n) anticipated number of items per flow; (o) type, composition and quantity of nuclear material per batch, estimated weight of each element of nuclear material, the isotopic composition when appropriate and form of nuclear material. POST- OPERATION INFORMATION 30. Decommissioning schedule dates (end of operation and of decommissioning dates). 31. Decommissioning plan, which shall include the following: (a) key events of the decommissioning plan; ELI: http://data.europa.eu/eli/dec/2025/492/oj 53/136EN OJ L, 14.3.2025 (b) removal and recovery of nuclear material. Provide a plan containing estimates of how, where and when nuclear material will be recovered and/or removed (e.g. loose material consolidated into items, removal of items, recovery/removal of material from decontamination activities, and recovery/removal of nuclear material in waste) and how it will be accounted for; (c) removing or rendering inoperable of equipment essential for the functioning of the installation, for handling or storing nuclear material. OTHER INFORMATION RELEVANT FOR THE APPLICATION OF SAFEGUARDS 32. Other optional information that the operator considers relevant to safeguarding the installation. 54/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX I-H WASTE TREATMENT, STORAGE AND DISPOSAL INSTALLATIONS Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION 1. Name of the installation (indicate usual abbreviation, if applicable). — Indicate MBA code(s) (once attributed). 2. Location, postal and email address (functional mailbox when available) and telephone number. 3. Owner (legally responsible body or individual) with contact details. 4. Operator (legally responsible body or individual) with contact details. 5. Description (main features only). 6. Purpose and type of the installation. 7. Present status (e.g. design phase, under construction, in operation, closed down and/or under decommissioning, closed (for disposal installations only)). 8. Pre-operation information Design and construction schedule dates, estimated commissioning and operation starting dates. Requested and/or approved licence dates (e.g. decision of principle, construction and expected operation licence request dates). Information on expected date of receipts of the nuclear material. Installation design drawings to be communicated as soon as these are available. 9. Normal operating mode (shift system adopted, approximate dates of operating periods in year. 10. Area layout (map showing the installation, boundaries, buildings, roads, rivers, railways, etc.). 11. Layout of installation: (a) structural containment, fences and access routes; (b) routes followed by nuclear material; (c) waste storage areas; (d) waste disposal areas; (e) each main processing area and process laboratory; (f) test or experimental areas; (g) analytical laboratory. 12. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. Overall process parameters 13. Description of the installation (indicating main items of equipment). ELI: http://data.europa.eu/eli/dec/2025/492/oj 55/136EN OJ L, 14.3.2025 14. Process description (also indicating the modification of physical and chemical forms). 15. Design capacity (in weight of principal products per year). 16. Anticipated throughput (in the form of a forward programme indicating proportion of various feeds and products). 17. Other important items of equipment using, producing or processing nuclear material (such as testing and experimental equipment). GENERAL ARRANGEMENTS AT THE INSTALLATION, INCLUDING THOSE RELATING TO MATERIAL USE AND ACCOUNTANCY, CONTAINMENT AND SURVEILLANCE Description of nuclear material 18. Main material description: (a) chemical and physical forms (including nuclear material content and enrichment); (b) batch size/flow rate and campaign period, means of batch identification; (c) nuclear material storage areas and plant inventory (indicating any change with throughput); (d) frequency of receipt or shipment (batches/units per month). 19. Other nuclear material in the installation and its location, if any. 20. Schematic flowsheet for nuclear material (identifying sampling points, flow and inventory measurement points, accountability areas, inventory locations, etc.). 21. Types, form, ranges of nuclear material content (including enrichment, as applicable), ranges of quantities of nuclear material flow for each nuclear material handling area. Handling of nuclear material 22. Containers, packaging and storage area description. 23. Methods and means of transfer of nuclear material (describe also equipment used). 24. Transportation routes followed by nuclear material (with reference to plant layout). 25. Shielding (for storage and transfer). Maintenance of the installation 26. Maintenance, decontamination, clean-out (in cases where clean-out and/or sampling is not possible, indicate how the hold-up of nuclear material is measured or calculated): (a) normal maintenance of the installation; (b) installation and equipment decontamination and subsequent nuclear material recovery; (c) installation and equipment clean-out including means of ensuring vessels are empty; (d) installation start-up and plant shut-down (if different from normal operation). Protection and safety rules 27. Specific rules for the physical access to the nuclear material for inspector information. 28. Specific radiological protection and health and safety rules for inspector compliance (if extensive, attach separately). 56/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL (NMAC) 29. Description of the NMAC system, the method of recording and reporting accountancy data and establishing material balances, frequency of physical inventory takings, procedures for account adjustment after plant inventory taking, mistakes, etc., under the following headings: (a) General Source data (e.g. shipping and receiving forms, internal transfer documents, physical inventory forms, the initial recording of measurements and measurement control sheets). Procedures for making adjustments and corrections (indicating how the adjustments are authorized and substantiated); (b) Receipts (including method of dealing with shipper/receiver differences and subsequent accounting corrections; checks and measurements used to confirm nuclear material content); (c) Shipments (products, waste); (d) Transfers to retained waste (method of establishing quantities, method and envisaged period of storage, possible subsequent uses of retained waste); (e) Discards to the environment (method of establishing quantities, method of discharge); (f) Other inventory changes, e.g. transfers to conditioned waste, unmeasured losses (method of establishing quantities); (g) Physical inventory Description of procedures, scheduled frequency, estimated distribution of nuclear material, methods of operator’s inventory taking (both for the number of items as well as their nuclear material weights, including relevant assay method), accessibility and possible verification method for nuclear material, expected accuracy, and access to nuclear material. In particular the description of procedures shall also provide the basic inventory approach to be used, i.e. planning, organizing, and conducting the inventory taking, primary responsibility for inventory taking, process clean-out, accountancy of process residual hold-up; (h) Operational and accounting records (including internal transfer forms, method of adjustment or correction, control measures and responsibility for records). Description of how these records are maintained, including when an adjustment or correction is needed, place where the records can be consulted, retention time and language; (i) Particular accounting provisions Description of particular provisions, e.g. for the designation of batch IDs and methods for preventing, detecting and timely fixing of accounting discrepancies. 30. For each flow and inventory measurement point, and sampling points of accountability areas, provide the following information, when applicable: (a) description of location, type, identification; (b) expected types of inventory change at this measurement point and possibility to use this measurement point for physical inventory taking; (c) chemical and physical form of material; (d) sampling procedure and equipment used; (e) measurement/analytical method and equipment used; (f) source and level of random and systematic errors (weighing, volume, sampling, analytical); (g) calculative and error propagation technique; (h) technique and frequency of calibration of equipment used; (i) programme for the continuing appraisal of the accuracy of weight, volume, sampling techniques and measurement methods; ELI: http://data.europa.eu/eli/dec/2025/492/oj 57/136EN OJ L, 14.3.2025 (j) programme for statistical evaluation of data from (h) and (i). 31. Overall limit of error. Describe procedures to combine individual measurement error determination to obtain the overall limit of error for: (a) shipper/receiver differences; (b) book inventory; (c) physical inventory; (d) material unaccounted for (MUF). POST- OPERATION INFORMATION 32. Decommissioning schedule dates (end of operation and of decommissioning dates). 33. Decommissioning plan, which shall include the following: (a) key events of the decommissioning plan; (b) removal and recovery of nuclear material. Provide a plan containing estimates of how, where and when nuclear material will be recovered and/or removed (e.g. loose material consolidated into items, removal of items, recovery/removal of material from decontamination activities, and recovery/removal of nuclear material in waste) and how it will be accounted for; (c) removing or rendering inoperable of equipment essential for the functioning of the installation, for handling or storing nuclear material. OTHER INFORMATION RELEVANT FOR THE APPLICATION OF SAFEGUARDS 34. Other optional information that the operator considers relevant to safeguarding the installation. 58/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX I-J SPENT FUEL ENCAPSULATION INSTALLATIONS Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION 1. Name of the installation (indicate usual abbreviation, if applicable). — indicate MBA code (once attributed). 2. Location, postal and email address (functional mailbox when available) and telephone number. 3. Owner (legally responsible body or individual) with contact details. 4. Operator (legally responsible body or individual) with contact details. 5. Description (main features only). 6. Purpose and type of the installation. 7. Present status (e.g. design phase, under construction, in operation, closed down and/or under decommissioning). 8. Pre-operation information Design and construction schedule dates, estimated commissioning and operation starting dates. Requested and/or approved licence dates (e.g. decision of principle, construction and expected operation licence request dates). Information on expected date of receipts of the nuclear material. Installation design drawings to be communicated as soon as these are available. 9. Normal operating mode (shift system adopted, approximate dates of operating periods in year, etc.). 10. Area layout (map showing the installation, boundaries, buildings, roads, rivers, railways, etc.). 11. Layout of the installation including floor and section drawings: (a) identification of main areas (structural containment, fences and access routes); (b) routes followed by nuclear material, disposal canisters and spent fuel casks; (c) nuclear material and disposal canister storage areas; (d) waste storage area; (e) each main processing area and process laboratory; (f) test and experiment area, analytical laboratories, if applicable. 12. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. General installation data 13. Description of the process and locations indicating: (a) all process stages; ELI: http://data.europa.eu/eli/dec/2025/492/oj 59/136EN OJ L, 14.3.2025 (b) all receipt, shipment, process and storage areas. 14. Process description including process flow sheet. 15. Design capacity. 16. Anticipated annual throughput and inventory of storage and process areas. 17. Main items of equipment used in the installation including surveillance and measurement equipment, also for testing and experimental purpose. GENERAL ARRANGEMENTS AT THE INSTALLATION INCLUDING THOSE RELATING TO NUCLEAR MATERIAL USE AND HANDLING Description and flow of nuclear material 18. Nuclear material description: (a) main types of nuclear material, and accounting units to be handled in the installation; (b) physical (mechanical) form, cladding, and overall dimensions of spent fuel assemblies; (c) physical (mechanical) form, overall dimensions, and capacity of disposal canisters; (d) physical form and overall dimensions and capacity of other types of containers and packaging; (e) means of batch and item identification, batch size, flow rate, and campaign period; (f) range of initial weights of heavy metal and initial enrichments of fuel assemblies; (g) range of spent fuel burn-ups, cooling times, and Pu contents of fuel assemblies; (h) range of radiation levels in nuclear material storage and process areas (dose rates); (i) range of radiation levels and heat levels at exterior of transport and disposal containers (dose rates and temperatures). 19. Other nuclear material in the installation besides spent fuel (type, form, quantity, and location). 20. Flow of nuclear material: (a) schematic flow sheet and drawings; (b) flow and inventory measurement points, accountability areas, inventory locations; (c) frequency of receipt and shipment. 21. Nuclear material flow quantities for each nuclear material handling area, including range and maximum quantities of nuclear material: (a) receipt and shipment areas; (b) process area (i.e. handling cell); (c) storage area; (d) other locations. 22. Design range of inventories of nuclear material in each storage and process area. Handling of nuclear material 23. Description of container, canister and packaging in which nuclear material is transported (including size, design, internal basket design, material used, capacity, closure etc.) Refer to drawings when available. 24. Description of each nuclear material storage and process area. 60/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 25. Shielding in different process, storage and transfer areas. 26. Methods and means of handling and transport of nuclear material and of transport containers in process and storage areas. 27. Transportation routes followed by nuclear material, containers and canisters with reference to installation layout. 28. Maintenance and decontamination: (a) normal plant maintenance; (b) plant and equipment decontamination. Protection and safety rules 29. Specific rules for the physical access to the nuclear material for inspector information. 30. Specific radiological protection and health and safety rules for inspector compliance. NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL 31. The NMAC system shall be described under the following headings: (a) General Description of the accountancy system used to record and report accountancy data, including method of recording accountancy data and establishing material balance; (b) Main inventory changes Description of typical inventory changes e.g. receipts (including method of dealing with accounting corrections, the checks and measurements used to confirm spent fuel items), rebatching, shipments of disposal canisters and other nuclear material (including waste), including a description of how these changes are determined. Corresponding operational records and source data (e.g. receiving and shipping forms) shall be identified; (c) Physical inventory Description of procedures, method of operator’s inventory taking, scheduled frequency, estimated distribution of nuclear material, accessibility and verification method; (d) Operational and accounting records (including internal transfer forms, method of adjustment or correction, control measures and responsibility for records). Description of how these records are maintained, including when an adjustment or correction is needed, place where the records can be consulted, retention time and language; (e) Particular accounting provisions Description of particular provisions, e.g. for the designation of batch IDs and methods for preventing, detecting and timely fixing of accounting discrepancies. 32. Provisions related to existing or foreseen containment and surveillance measures (general description in reference to floor plan and installation layout enabling to install seals, cameras, lasers, remote data transmission, etc.). 33. For each measurement point of the material balance area, provide the following information, when applicable: (a) description of location, type, identification; (b) anticipated types of inventory changes and possibility to use this measurement point for physical inventory taking; (c) physical and chemical form of nuclear material; (d) nuclear material containers; ELI: http://data.europa.eu/eli/dec/2025/492/oj 61/136EN OJ L, 14.3.2025 (e) sampling procedures and equipment used; (f) measurement methods and equipment used including radiation measurement in handling cell; (g) source and level of accuracy; (h) technique and frequency of calibration of equipment used; (i) method of converting source data to batch data; (j) means of batch identification; (k) anticipated batch flow per year; (l) anticipated number of inventory batches; (m) anticipated number of items per flow; (n) type, composition and quantity of nuclear material per batch, total weight of each element of nuclear material, the isotopic composition when appropriate and form of nuclear material. POST- OPERATION INFORMATION 34. Decommissioning schedule dates (end of operation and of decommissioning dates). 35. Decommissioning plan, which shall include the following: (a) key events of the decommissioning plan; (b) removal and recovery of nuclear material. Provide a plan containing estimates of how, where and when nuclear material will be recovered and/or removed (e.g. loose material consolidated into items, removal of items, recovery/removal of material from decontamination activities, and recovery/removal of nuclear material in waste) and how it will be accounted for; (c) removing or rendering inoperable of equipment essential for the functioning of the installation, for handling or storing nuclear material. OTHER INFORMATION RELEVANT FOR THE APPLICATION OF SAFEGUARDS 36. Other optional information that the operator considers relevant to safeguarding the installation. 62/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX I-K GEOLOGICAL REPOSITORIES Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION 1. Name of the installation (indicate usual abbreviation, if applicable). — indicate MBA code(s) (once attributed). 2. Location, postal and email address (functional mailbox when available) and telephone number. 3. Owner (legally responsible body or individual) with contact details. 4. Operator (legally responsible body or individual) with contact details. 5. Description (main features only). 6. Purpose and type of the installation. 7. Present status (e.g. design phase, under construction, in operation, post-operational phase). 8. Pre-operation information Design and construction schedule dates, estimated commissioning and operation starting dates. Requested and/or approved licence dates (e.g. decision of principle, construction and expected operation licence request dates). Information on expected date of receipts of the nuclear material. Installation design drawings to be communicated as soon as these are available. 9. Normal operating mode (shift system adopted, approximate dates of operating periods in year, etc.). 10. Area layout (map showing the installation, boundaries, buildings, roads, rivers, railways, etc.). 11. Layout of the installation including related drawings: (a) identification of main areas (structural containment, fences and access routes); (b) routes followed by nuclear material, disposal canisters; (c) nuclear material, disposal canister storage areas; (d) disposal area; (e) main access routes for vehicles and personnel and ventilation shafts (including shaft and vent size); (f) access and disposal tunnels; (g) test and experiment area, analytical laboratories, if applicable; (h) description of restricted zone and other controlled areas established around the repository. 12. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. ELI: http://data.europa.eu/eli/dec/2025/492/oj 63/136EN OJ L, 14.3.2025 General installation data 13. Description of geological data: (a) information on the host geology of the geological repository (evidence and conclusions on the integrity of the geological formation hosting the disposal); (b) monitoring systems for excavation activities (including types, exact locations and depths of sensors; other monitoring systems, including safety monitoring; other equipment including testing and experimental equipment); (c) information on design of the surface areas (including receipt, storage, and preparation of canisters for disposal); (d) information on the design of the geological repository underground area, (including layout, isolation doors, measures to strengthen or stabilize walls and ceilings of excavations; shaft and vent size and features, etc.); (e) information on access routes for personnel and materials; provision of utilities; areas for receipt and storage of disposal canisters; 14. Process description, including above and underground operations, ramp, tunnel and shaft excavation, excavated material removal, canister preparation, transportation and storage and backfilling and tunnel closure with nominal schedule of different processes. 15. Design capacity. 16. Anticipated annual disposal plan. 17. Main equipment used in the installation including maximum weight loads of hoist and canister transport vehicle. GENERAL ARRANGEMENTS AT THE INSTALLATION, INCLUDING THOSE RELATING TO NUCLEAR MATERIAL USE AND HANDLING Description and flow of nuclear material 18. Nuclear material description: (a) types of nuclear material, including other nuclear material in the installation besides spent fuel if applicable (type, form, quantity, and location); (b) types of other radioactive materials in the installation; (c) types of accountability units (e.g. disposal canisters and other containers) to be handled in the installation; (d) appearance, means of identification, and overall dimensions of accountability units; (e) number of fuel assemblies or quantity of other nuclear material per disposal canister or other container; (f) quantity of other radioactive material per disposal cannister or other container; (g) number of disposal canisters or other containers per transport container or transport vehicle; (h) range of weight of nuclear material per disposal canister or other container; (i) range of radiation and heat levels at exterior of disposal canisters and/or containers (dose rates at the surface and at a distance of 1 meter, and temperatures). 19. Flow of nuclear material: (a) schematic flow sheet; (b) flow and inventory measurement points, accountability areas, inventory locations; (c) frequency of receipt of accountancy related units and transfers to underground; 64/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 (d) routes followed and emplacement of disposal canisters or other containers. 20. Designed range of inventories of nuclear material in each storage area. Installation operation and handling of nuclear material 21. Description of container, canister and packaging in which nuclear material is transported (including size, design, internal basket design, material used, capacity, closure etc.). Refer to drawings when available. 22. Shielding in different storage and transfer areas. 23. Methods and means of handling and transfer of nuclear material and canisters in storage and emplacement areas including description of the transfer vehicle. 24. Transportation routes followed by nuclear material with reference to installation layout. 25. Description of each nuclear material storage area. 26. Method of positioning of nuclear material in storage areas. 27. Method of nuclear material emplacement and backfilling. 28. Description and number of nuclear material emplacement area and disposal tunnel. 29. Description of maintenance activities and areas. Protection and safety rules 30. Specific rules for the physical access to the nuclear material for inspector information. 31. Specific radiological protection and health and safety rules for inspector compliance. NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL (NMAC) 32. The NMAC system shall be described under the following headings: (a) General Description of the accountancy system used to record and report accountancy data, including method of recording accountancy data and establishing material balance; (b) Main inventory changes Description of typical inventory changes e.g. receipts (including method of dealing with accounting corrections, the verifications used) and shipments of disposal canisters, if occurred and transfers as appropriate. Corresponding operational records and source data e.g. receiving and shipping forms shall be identified; (c) Physical inventory Description of procedures, method of operator’s inventory taking, scheduled frequency, estimated distribution of nuclear material, accessibility and verification method; (d) Operational and accounting records (including internal transfer forms, method of adjustment or correction, control measures and responsibility for records). Description of how these records are maintained, including when an adjustment or correction is needed, place where the records can be consulted, retention time and language; (e) Particular accounting provisions Description of particular provisions, e.g. for the designation of batch IDs and methods for preventing, detecting and timely fixing of accounting discrepancies. ELI: http://data.europa.eu/eli/dec/2025/492/oj 65/136EN OJ L, 14.3.2025 33. Provisions related to existing or possible containment and surveillance measures (general description in reference to floor plan and installation layout enabling to install seals, cameras, lasers, remote data transmission, etc.). 34. For each measurement point of the material balance area (e.g. storage area, deposition tunnel), provide the following information, when applicable: (a) description of location, type, identification; (b) anticipated types of inventory changes and possibility to use this measurement point for physical inventory taking; (c) handling and transfer equipment used; (d) verification methods and equipment used; (e) means of batch identification; (f) anticipated number of inventory batches and flow per year. OTHER INFORMATION RELEVANT FOR THE APPLICATION OF SAFEGUARDS 35. Other optional information that the operator considers relevant. This may include amongst others: — additional information on the host geology of the geological repository (including geological stratification; geochemistry; geophysics; identification of radionuclides found in the repository environment; — geological repository characterization activities (e.g. subsurface excavations and exploratory activities). 66/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX I-L LOCATION OUTSIDE FACILITIES (LOF) Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION AND OF THE NUCLEAR MATERIAL 1. Name of the installation (indicate usual abbreviation, if applicable). — Indicate MBA code(s) (once attributed). 2. Location, postal and email address (functional mailbox when available) and telephone number. 3. Owner (legally responsible body or individual) with contact details. 4. Operator (legally responsible body or individual) with contact details. 5. Description (main features). 6. Purpose (intended use of nuclear material). 7. Present status (e.g. under construction, in operation, closed down and/or under decommissioning). 8. Area layout (showing the location of the installation, access roads, rivers, railways etc.). 9. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. 10. Categories of nuclear material used in the installation. 11. Description of the nuclear material: (a) for each category describe typical batches and items; (b) chemical and physical form; (c) enrichment range and Pu content; (d) amount of nuclear material usually kept at the location / per category. 12. Means of nuclear material identification. 13. Range of radiation levels at nuclear material locations (dose rates at specified locations) (if relevant). 14. Description of main containers used for transport, storage and handling. 15. Nuclear material transfer equipment. Protection and safety rules 16. Specific rules for the physical access to the nuclear material for inspector information. 17. Specific radiological protection and health and safety rules. ELI: http://data.europa.eu/eli/dec/2025/492/oj 67/136EN OJ L, 14.3.2025 NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL (NMAC) 18. The NMAC system shall be described including a description of the procedures for the nuclear material accountancy and control system including procedures for physical inventory taking (both for the number of items as well as their nuclear material weights). From the list of inventory items and the Physical Inventory Listing, as well as for the operational and accounting records, the location of every declared item/batch shall be identifiable. 19. Provisions related to existing or foreseen containment and surveillance measures (general description in reference to floor plan and installation layout enabling to install seals, cameras, etc.). OTHER INFORMATION RELEVANT FOR THE APPLICATION OF SAFEGUARDS 20. Any other information that the operator considers relevant to the application of safeguards. 68/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX I-M NATIONAL LOCATION OUTSIDE FACILITIES (NATIONAL LOF) Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION (S) AND OF THE NUCLEAR MATERIAL 1. Name, postal address, email (functional mailbox when available) and telephone number of the entity (e.g. authority) responsible for the national LOF. — Indicate MBA code (once attributed). 2. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. 3. List of the different installations belonging to the national LOF. A unique identification number for the identification of every installation is needed. NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL 4. Description on how responsibilities are shared between responsible authorities and individual smallholders for the purpose of implementing Articles 9 to 11. 5. Description of the procedures for the nuclear material accountancy and control system including procedures for physical inventory taking (both for the number of items as well as their nuclear material weights). From the list of inventory items and the PIL, the holder of every declared item/batch shall be identifiable. In addition, for every installation belonging to the national LOF: 1. Name of the installation and identification number. 2. Location. 3. Operator (legally responsible body or individual). 4. Description of the use of nuclear material. ELI: http://data.europa.eu/eli/dec/2025/492/oj 69/136EN OJ L, 14.3.2025 ANNEX I-N INSTALLATIONS CANDIDATE MEMBERS OF THE CATCH ALL MBA (CAM) Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). NB: Information provided under this Annex is not considered as nuclear material accountancy information to be provided as inventory change report and list of inventory items. The use of a different template is required if the installation is not or no longer entitled to be part of the catch all MBA or if a national LOF is established in the Member State. For these holders of small amounts of nuclear materials (smallholders), the total inventory is calculated as the sum of the stock of each category of nuclear material held, each expressed as a percentage of the following limits: depleted uranium 350 000 g or thorium 200 000 g or natural uranium 100 000 g or low enriched uranium 1 000 g or high enriched uranium 5 g or plutonium 5 g For example: (a) a holder with 4 g of plutonium has a percentage inventory equal to 80 % (4/5); (b) a holder with 1 g of high enriched uranium plus 20 000 g of natural uranium has a percentage inventory equal to 40 % (1/5 + 20 000/100 000). IDENTIFICATION OF THE INSTALLATION AND OF THE NUCLEAR MATERIAL 1. Name. 2. Owner and/or operator. 3. Location, postal and email address (functional mailbox when available) and telephone number. 4. Type and quantity of nuclear material. 5. Description of containers used for storage and handling. 6. Description of the use of nuclear material. NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL (NMAC) The obligations of smallholders have been simplified as follows: A. Limits on holdings/movements If any individual receipt of nuclear material exceeds the quantities indicated above or if the ‘percentage inventory’ of the installation exceeds 100 % at any time, the Commission shall be notified immediately. 70/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 B. Accounting/operating records to be maintained Accounting/operating records shall be kept in a manner permitting ready verification of reports made to the Commission and of any correction thereto. C. Inventory change reports (ICR) An annual inventory change report shall be transmitted to the Commission by 31 January of each year, provided that no inventory change occurred during the period. This report shall describe the situation on 31 December of the previous calendar year. In the case of any inventory change occurring during the year, an inventory change report shall be transmitted to the Commission as soon as possible and, at the latest, within 15 days of the end of the month in which the inventory change occurred. Inventory change reports shall be provided in line with the requirements set out in Annex III, in electronic form using a dedicated ICR excel template to be provided by the Commission. D. List of inventory items (LII) An annual list of inventory items showing all items separately shall be transmitted to the Commission by 31 January of the following year, in line with the requirements for the physical inventory listing set out in Annex V. The LII shall be transmitted in electronic form. A dedicated LII excel template is provided by the Commission for this purpose. ELI: http://data.europa.eu/eli/dec/2025/492/oj 71/136EN OJ L, 14.3.2025 ANNEX I-P OTHER INSTALLATIONS USING NUCLEAR MATERIAL EXCEEDING ONE EFFECTIVE KILOGRAM Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION AND OF THE NUCLEAR MATERIAL 1. Name of the installation (indicate usual abbreviation, if applicable). — Indicate MBA code(s) (once attributed). 2. Location, postal and email address (functional mailbox when available) and telephone number. 3. Owner (legally responsible body or individual) with contact details. 4. Operator (legally responsible body or individual) with contact details. 5. Description (main features). 6. Purpose (intended use of nuclear material). 7. Present status (e.g. design phase, under construction, in operation, closed down or under decommissioning). 8. Pre-operation information Design and construction schedule dates, estimated commissioning and operation starting dates. Requested and/or approved licence dates (e.g. decision of principle, construction and expected operation licence request dates). Information on expected date of receipts of the nuclear material. Installation design drawings to be communicated as soon as these are available. 9. Area layout (showing the location of the installation, access roads, rivers, railways etc.). 10. Installation layout (showing nuclear material handling and storage areas, laboratories, glove boxes, boundaries, fences, etc.). 11. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. 12. Categories of nuclear material used in the installation. 13. Description of the nuclear material: (a) for each category describe typical batches and items; (b) chemical and physical form; (c) enrichment range and Pu content; (d) amount of nuclear material usually kept at the location / per category. 14. Means of nuclear material identification. 15. Range of radiation levels at nuclear material locations (dose rates at specified locations). 16. Description of main containers used for transport, storage and handling. 17. Nuclear material transfer equipment. 72/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 18. Identification of measurement points, accountability areas, inventory locations, schematic flowsheet if available. Protection and safety rules 19. Specific rules for the physical access to the nuclear material for inspector information. 20. Specific radiological protection and health and safety rules. NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL (NMAC) 21. The NMAC system shall be described under the following headings: (a) General Description of the accountancy system used to record and report accountancy data, including method of recording accountancy data and establishing material balance; (b) Main inventory changes Description of typical inventory changes e.g. receipts, shipments, waste related changes, rounding and adjustments (records and source data shall be kept), including a description of how these changes are determined. Corresponding operational records and source data (e.g. receiving and shipping forms, the initial recording of measurements and measurement control sheets) shall be identified; (c) Physical inventory Description of procedures, scheduled frequency, methods of operator’s inventory taking (both for the number of items as well as their nuclear material weights), including relevant assay methods and expected accuracy, access to nuclear material, possible methods for the physical verification of nuclear materials; (d) Operational and accounting records (including internal transfer forms, method of adjustment or correction, control measures and responsibility for records). Description of how these records are maintained, including when an adjustment or correction is needed, place where the records can be consulted, retention time and language; (e) Particular accounting provisions Description of particular provisions, e.g. for the designation of batch IDs and methods for preventing, detecting and timely fixing of accounting discrepancies. 22. Provisions related to existing or foreseen containment and surveillance measures (general description in reference to floor plan and installation layout enabling to install seals, cameras, lasers, remote data transmission, etc.). 23. For each measurement point of the material balance area provide the following information, when applicable: (a) description of location, type and identification; (b) physical and chemical form of nuclear material (with cladding material description); (c) measurement methods and equipment used; (d) methods of converting source data to batch data; (e) means of batch identification and data description. POST- OPERATION INFORMATION 24. Decommissioning schedule dates (end of operation and of decommissioning dates) (where applicable). 25. Decommissioning plan, which shall include the following (where applicable): (a) key events of the decommissioning plan; ELI: http://data.europa.eu/eli/dec/2025/492/oj 73/136EN OJ L, 14.3.2025 (b) removal and recovery of nuclear material. Provide a plan containing estimates of how, where and when nuclear material shall be recovered and/or removed (e.g. loose material consolidated into items, removal of items, recovery/removal of material from decontamination activities, and recovery/removal of nuclear material in waste) and how it shall be accounted for; (c) removing or rendering inoperable of equipment essential for the functioning of the installation, for handling or storing nuclear material. OTHER INFORMATION RELEVANT FOR THE APPLICATION OF SAFEGUARDS 26. Any other information that the operator considers relevant to the application of safeguards. 74/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX I-Q ORE INSTALLATIONS Administrative details: (a) date (date on which the BTC was completed); (b) version (unique number for reference); (c) responsible officer (name and contact details). IDENTIFICATION OF THE INSTALLATION AND OF THE NUCLEAR MATERIAL 1. Name of the installation (indicate usual abbreviation, if applicable). — Indicate MBA code (once attributed). 2. Location, postal and email address (functional mailbox when available) and telephone number. 3. Owner (legally responsible body or individual). 4. Operator (legally responsible body or individual). 5. Type of nuclear material (uranium ore, thorium ore or both). 6. Description of containers used for storage and handling (e.g. to determine whether sealing is possible). 7. Description of ore extraction, processing and use of source materials, including a layout of the installation. 8. The potential annual throughput of the installation. 9. The current status (e.g. under construction, in operation or closed down). 10. Safeguards responsible, also for nuclear material accountancy, with email address (functional mailbox when available) and telephone number. NUCLEAR MATERIAL ACCOUNTANCY AND CONTROL 11. Description of the procedures for nuclear material accountancy and control, including procedures for physical inventory taking. OTHER INFORMATION RELEVANT FOR THE APPLICATION OF SAFEGUARDS 12. Any other information that the operator considers relevant to the application of safeguards. ELI: http://data.europa.eu/eli/dec/2025/492/oj 75/136EN OJ L, 14.3.2025 ANNEX II GENERAL DESCRIPTION OF THE SITE (1) Site identification Declaration No (2) Declaration date Reporting period (3) Name of the site representative Comments (4) General description, Entry (5) Ref. (6) MBA code (7) Building (8) including use of Comments (10) contents (9) Explanatory notes (1) The initial declaration shall include all nuclear installations, and all other buildings on their sites. A separate entry shall be made for each building on the site. Subsequent annual update declarations shall include only those sites and buildings which have undergone a change since the previous declaration. A map of the site shall be attached with the initial declaration and updated when necessary. (2) The ‘Declaration No’ is a sequential number for each site, starting with ‘1’ for the initial site declaration. (3) The ‘Reporting period’ for the initial declaration is an ‘as of’ date, while for all subsequent annual updates the appropriate entry is the beginning and the ending date of the time period. It is understood that the information provided is valid as of the ending date. (4) Comments applicable to the whole of the site. (5) Each ‘Entry’ in each declaration shall be numbered sequentially, beginning with ‘1’. (6) The ‘Ref.’ column shall be used to refer to another entry. The contents of the ‘Ref.’ column consist of the relevant declaration and entry numbers (e.g. 10-20 refers to entry 20 of declaration 10). The reference indicates that the current entry adds to or updates information reported earlier. Several references may be inserted, if necessary. (7) The ‘MBA code’ column shall make reference to the MBA code to which the building in this entry belongs. (8) The ‘Building’ column shall include a building number or other designation that provides an unambiguous identification of the building on the schematic map of the site. (9) The ‘General description’ for each building shall include: (a) the approximate size of the building in terms of the number of floors and the total square meters of floor space; (b) the use of the building, including any prior uses of the building that might be relevant to interpreting other information, such as the results of environmental sampling, available to the Commission; 76/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 and (c) the main contents of the building, where this is not readily apparent from the stated use. However, descriptions of activities previously provided in the Basic Technical Characteristics questionnaire don’t need to be repeated. (10) Comments applicable to individual entries. GENERAL REMARKS CONCERNING THE REPORTS 1. Under Article 79 of the Treaty, those subject to safeguards requirements shall notify the authorities of the Member State concerned of any communications they make to the Commission pursuant to Article 78 and the first paragraph of Article 79 of the Treaty. 2. Reports shall be prepared electronically in an agreed format. They shall be forwarded, duly completed and signed (digitally if possible), to the European Commission, Euratom Safeguards. ELI: http://data.europa.eu/eli/dec/2025/492/oj 77/136EN OJ L, 14.3.2025 ANNEX III INVENTORY CHANGE REPORT (ICR) Header Label/tag Content Comments # MBA Character (4) MBA code of reporting MBA 1 Report type Character (1) I for Inventory Change Report 2 Report date Date (DDMMYYYY) Date on which the report was completed 3 Report number Number Sequential number, no gaps 4 Line count Number Total number of lines reported 5 Start report Date (DDMMYYYY) Date of first day in reporting period 6 End report Date (DDMMYYYY) Date of last day in reporting period 7 Reporting person Character (64) Name of person responsible for the report 8 Entries Label/tag Content Comments # Transaction ID Number Sequential number 9 IC code Character (2) Type of inventory change 10 Batch Character (20) Unique identifier for a batch of nuclear material 11 KMP Character (1) Key measurement point 12 Measurement Character (1) Measurement code 13 Material form Character (2) Material form code 14 Material container Character (1) Material container code 15 Material state Character (1) Material state code 16 78/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 Label/tag Content Comments # Shipper MBA Character (4) MBA code of shipping MBA (for IC codes RD and RF only) 17 Receiver MBA Character (4) MBA code of receiving MBA (for IC codes SD and SF only) 18 Previous batch Character (20) Name of previous batch (for IC code RB only) 19 Original date Date (DDMMYYYY) Accounting date of the line to be corrected (always of first 20 line in correction chain) PIT date Date (DDMMYYYY) Date of physical inventory taking (PIT) to which MUF 21 adjustment refers (use with IC code MF only) Line number Number Sequential number, no gaps 22 Accounting date Date (DDMMYYYY) Date on which the inventory change occurred or became 23 known Number of items Number Number of items 24 Element category Character (1) Category of nuclear material 25 Element weight Number (24,3) Element weight 26 Isotope Character (1) G for U-235, K for U-233, J for a mixture of U-235 and 27 U-233 Fissile weight Number (24,3) Weight of fissile isotope 28 Isotopic composition Number (24,3) (for each U, Pu isotopic weights (only if agreed in particular 29 isotope) safeguard provisions) Obligation Character (5) Safeguard obligation 30 Previous element Character (1) Previous element category of nuclear material (use for IC 31 category codes CB, CC and CE only) Previous obligation Character (5) Previous obligation (use for IC codes BR, CR, PR and SR 32 only) Shipper CAM code Character (8) Code to identify the shipping small holder 33 ELI: http://data.europa.eu/eli/dec/2025/492/oj 79/136EN OJ L, 14.3.2025 Label/tag Content Comments # Receiver CAM code Character (8) Code to identify the receiving small holder 34 Document Character (70) Operator-defined reference to supporting documents 35 Container ID Character (20) Operator-defined identifier for the container 36 Correction Character (1) D for deletions, A for additions forming part of 37 a deletion/addition pair, L for late lines (stand-alone additions) Previous report Number Report number of line to be corrected 38 Previous line Number Line number of line to be corrected 39 Comment Character (256) Operator comment 40 Burn-up Number Burn-up in MWdays/tonne (use for IC codes NL and NP in 41 nuclear reactors only) CRC Number Hash code of line for quality control purposes 42 Previous CRC Number Hash code of line to be corrected 43 Advance notification Character (12) Reference code used for the advance notification sent to 44 reference code Euratom (use for IC codes RD, RF, SD and SF only) Campaign Character (12) Campaign identifier for reprocessing installations 45 Reactor Character (12) Reactor code for reprocessing campaigns 46 Safeguards info Character (256) Code for communicating additional information 47 Explanatory notes 1. MBA: Code of the reporting material balance area. This code is notified to the installation concerned by the Commission. 2. Report type: I for inventory change reports. 3. Report date: Date on which the report was completed. 4. Report number: Sequential number used for inventory change reports, material balance reports and physical inventory listings, no gaps. 5. Line count: Total number of lines reported. 80/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 6. Start report: Date of first day of reporting period. 7. End report: Date of last day of reporting period. 8. Reporting person: Name of the person responsible for the report. 9. Transaction ID: Sequential number. This is used to identify all inventory change lines relating to the same physical transaction. 10. IC code: One of the following codes shall be used: Keyword Code Explanation Receipt RD Receipt of nuclear material from a material balance area within the European Union. Import RF Import of nuclear material from a third country. Receipt from non-safeguarded RN Receipt of nuclear material from a non-safeguarded activity activity (Article 39). Shipment SD Transfer of nuclear material to a material balance area within the European Union. Export SF Export of nuclear material to a third country Shipment to non-safeguarded SN Transfer of nuclear material to a non-safeguarded activity (Article 39). activity Transfer to conditioned waste TC Nuclear material contained in waste that is measured or estimated on the basis of measurements, and which has been conditioned in such a way (e.g. in glass, cement, concrete or bitumen) that it is not suitable for further nuclear use. Installations may be authorized to use this code based on a reasoned and justified request and agreed reporting modalities. Separate records shall be kept for this type of material. Transfer to a geological disposal TG Transfer of nuclear material which is neither considered as retained area nor as conditioned waste into a geological disposal area. Installations may be authorized to use this code based on a reasoned and justified request and agreed reporting modalities. Discards to the environment TE Nuclear material that is measured or estimated on the basis of measurements, and which has been irrevocably discarded to the environment as the result of a planned discharge (Article 36(1)(a)). ELI: http://data.europa.eu/eli/dec/2025/492/oj 81/136EN OJ L, 14.3.2025 Keyword Code Explanation Transfer to retained waste TW Nuclear material generated from processing or from an operational accident contained in waste that is measured or estimated on the basis of measurements, and which has been transferred to a specific location within the material balance area from which it could be retrieved and which is deemed to be not recoverable for the time being. Separate records shall be kept for this type of material. Retransfer from conditioned FC Retransfer of conditioned waste to the inventory of the material waste balance area. This applies whenever conditioned waste undergoes processing. Retransfer from a geological FG Retrieval of nuclear material from a geological disposal area after it disposal area was declared as transfer to that geological disposal area. Use of this code requires a special report to be sent to the Commission. Retransfer from retained waste FW Retransfer of retained waste to the inventory of the material balance area. This applies whenever retained waste is retrieved from the specific location within the material balance area to which it had been transferred, either for any processing in the material balance area or for any shipment from the material balance area. Accidental loss LA Irretrievable and inadvertent loss of a quantity of nuclear material as the result of an operational accident. Use of this code requires a special report to be sent to the Commission. Accidental gain GA Nuclear material unexpectedly found, except when detected in the course of a physical inventory taking. Use of this code requires a special report to be sent to the Commission. Decommissioning gain GD Nuclear material arising during decommissioning activities or exceptional operations. Installations may be authorized to use this code based on a reasoned and justified request. Category change CE Accountancy transfer of a quantity of nuclear material from one category (Article 21) to another as a result of an enrichment process (only one line to be reported per category change). Category change CB Accountancy transfer of a quantity of nuclear material from one category (Article 21) to another as a result of a blending operation (only one line to be reported per category change). Category change CC Accountancy transfer of a quantity of nuclear material from one category (Article 21) to another for all types of category change, such as during irradiation or for exceptional and justified reasons, which are neither covered by codes CE and CB (only one line to be reported per category change) nor a correction. 82/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 Keyword Code Explanation Rebatching RB Accountancy transfer of a quantity of nuclear material from one batch to another (only one line to be reported per rebatching). Change in particular obligation BR Accountancy transfer of a quantity of nuclear material from one particular safeguard obligation to another (Article 19(1)), to balance the total uranium stock following a blending operation (only one line to be reported per change of obligation). Change in particular obligation PR Accountancy transfer of a quantity of nuclear material from one particular safeguard obligation to another (Article 19(1)), used when nuclear material enters or leaves an accountancy pool (only one line to be reported per change of obligation). Change in particular obligation SR Accountancy transfer of a quantity of nuclear material from one particular safeguard obligation to another (Article 19(1)), following an obligation exchange or a substitution (only one line to be reported per change of obligation). The use of this code requires prior authorization (Article 20(1)). Change in particular obligation CR Accountancy transfer of a quantity of nuclear material from one particular safeguard obligation to another (Article 19(1)), for all cases not covered by codes BR, PR or SR (only one line to be reported per change of obligation). Nuclear production NP Increase in the quantity of nuclear material due to nuclear transformation. Nuclear loss NL Decrease in the quantity of nuclear material due to nuclear transformation. Shipper/receiver difference DI Shipper/receiver difference. New measurement NM Quantity of nuclear material, in one particular batch, accounted for in the nuclear material balance area, being the difference between a newly measured quantity and the quantity formerly accounted for, and which is neither a shipper/receiver difference nor a correction. Material unaccounted for MF Book adjustment for material unaccounted for. Shall be equal to the difference between the ending physical inventory (PE) and the ending book inventory (BA) reported in the material balance report (Annex IV). The original date shall be that of the physical inventory taking, while the accounting date shall be after the date of the physical inventory taking. Roundings RA Rounding adjustment to make the sum of the quantities reported in a given period coincide with the ending book inventory of the material balance area. ELI: http://data.europa.eu/eli/dec/2025/492/oj 83/136EN OJ L, 14.3.2025 Keyword Code Explanation Isotope adjustment R5 Adjustment to make the sum of the isotope quantities reported coincide with the ending book inventory for U-235 of the material balance area. Material production MP Quantity of nuclear material, obtained from substances originally not subject to safeguards, which has become subject to safeguards because its concentration now exceeds the minimum levels. Termination of use TU Quantity of nuclear material considered as irrecoverable for practical or economic reasons which is incorporated in end products used for non-nuclear purposes (Article 36(1)(b)). The use of this code requires prior authorization. Termination of safeguards TZ Quantity of nuclear material considered as irrecoverable for practical or economic reasons which is contained in waste in very low concentrations measured or estimated on the basis of measurements, even if these materials are not disposed of (Article 36(1)(c)). Installations may be authorized to use this code based on a reasoned and justified request and agreed reporting modalities. Ending book inventory BA Book inventory at the end of a reporting period and at the PIT date, separate for each category of nuclear material and for each particular safeguard obligation. 11. Batch: The batch designation may be chosen by the operator, but: (a) in the case of the inventory change ‘Receipt (RD)’, the batch designation used by the shipper shall be reported; (b) a batch designation shall not be used again for another batch in the same material balance area. 12. KMP: Key measurement point. The codes are notified to the installation concerned and listed in the particular safeguard provisions. If no specific codes have been notified, ‘&’ shall be used. 13. Measurement: The basis on which the quantity of nuclear material reported was established has to be indicated. One of the following codes shall be used: Measured Estimated Explanation M E In the reporting material balance area. N F In another material balance area. T G In the reporting material balance area when the weights have already been given in a previous inventory change report or physical inventory listing. 84/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 Measured Estimated Explanation L H In another material balance area when the weights have already been given in a previous inventory change report or physical inventory listing for the present material balance area. 14. Material form: The following codes shall be used: Main type of material form Subtype Code Ores OR Concentrates YC Uranium hexafluoride (UF6) U6 Uranium tetrafluoride (UF4) U4 Uranium dioxide (UO2) U2 Uranium trioxide (UO3) U3 Uranium oxide (U3O8) U8 Thorium oxide (ThO2) T2 Solutions Nitrate LN Fluoride LF Other LO Powder Homogeneous PH Heterogeneous PN Ceramics Pellets CP Spheres CS Other CO ELI: http://data.europa.eu/eli/dec/2025/492/oj 85/136EN OJ L, 14.3.2025 Main type of material form Subtype Code Metal Pure MP Alloys MA Fuel Rods, pins ER Plates EP Bundles EB Assemblies EA Other EO Sealed sources QS Small quantities/samples SS Scrap Homogeneous SH Heterogeneous (clean-outs, clinkers, sludges, fines, other) SN Solid waste Hulls AH Mixed (plastics, gloves, papers, etc.) AM Contaminated equipment AC Other AO Liquid waste Low active WL Medium active WM High active WH 86/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 Main type of material form Subtype Code Conditioned waste Glass NG Bitumen NB Concrete NC Other NO 15. Material container: The following codes shall be used: Type of container Code Cylinder C Pack P Drum D Discrete fuel unit S Bird cage B Bottle F Tank T Other O 16. Material state: The following codes shall be used: State Code Fresh nuclear material F Irradiated nuclear material I Waste W Irrecoverable material N ELI: http://data.europa.eu/eli/dec/2025/492/oj 87/136EN OJ L, 14.3.2025 17. Shipper MBA: Use only for inventory change codes RD and RF. For inventory change code RD, the code of the shipping material balance area is reported. If this code is unknown, the code ‘F’ or ‘W’ (for the shipping MBA in France or a non-nuclear-weapon State) is reported and the shipper’s full name and address shall be entered in the comment field (40). For inventory change code RF, the country code of the exporting state, or the MBA code of the exporting installation if known, is reported, and the shipper’s full name and address shall be entered in the comment field (40). 18. Receiver MBA: Use only for inventory change codes SD and SF. For inventory change code SD, the code of the receiving material balance area is reported. If this code is unknown, the code ‘F’ or ‘W’ (for the receiving MBA in France or a non-nuclear-weapon State) is reported and the receiver’s full name and address shall be entered in the comment field (40). For inventory change code SF, the country code of the importing state or the MBA code of the importing installation if known, is reported, and the receiver’s full name and address shall be entered in the comment field (40). 19. Previous batch: Batch designation before rebatching. The batch designation after the rebatching shall be reported in field 11. 20. Original date: In the case of a correction, the day, month and year when the line to be corrected was originally entered shall be reported. For correction chains, the original date is always the accounting date of the first line in the chain. For late lines (stand-alone additions), the original date is the date on which the inventory change occurred. 21. PIT date: Date of the physical inventory taking as reported in the material balance report on which the book adjustment for MUF (material unaccounted for) is based. Use only with inventory change code MF. 22. Line number: Sequential number starting with 1 in each report, no gaps. 23. Accounting date: Date when the inventory change occurred or became known. 24. Number of items: The number of items making up the batch shall be reported. If an inventory change consists of several lines, the sum of the number of items reported shall equal the total number of items belonging to the same transaction ID. If the transaction involves more than one element the number of items shall be declared in the line(s) for the element category of highest safeguards relevance only (in descending order: P, H, L, N, D, T). 25. Element category: The following codes shall be used: Category of nuclear material Code Plutonium P High enriched uranium (20 % enrichment and above) H Low enriched uranium (higher than natural but less than 20 % enrichment) L Natural uranium N Depleted uranium D Thorium T 88/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 26. Element weight: The weight of the element category referred to in field 25 shall be reported. All weights shall be reported in grams. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places. 27. Isotope: This code indicates the fissile isotopes involved and shall be used when the weight of fissile isotopes is reported (28). The following codes shall be used: Fissile isotope(s) Code Uranium-235 G Uranium-233 K A mixture of uranium-235 and uranium-233 J 28. Fissile weight: Unless otherwise stated in the particular safeguard provisions, the weight of fissile isotopes shall only be reported for enriched uranium and category changes involving enriched uranium. All weights shall be reported in grams. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places. 29. Isotopic composition: If agreed in the particular safeguard provisions the isotopic composition of U and/or Pu shall be reported in the format as a list of weights separated by semi-colons to denote the weight of U-233, U-234, U-235, U-236, U-238 or Pu-238, Pu-239, Pu-240, Pu-241, Pu-242. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places. 30. Obligation: Indication of the particular safeguard obligation assumed by the Community under an Agreement concluded with a third country or an international organisation, to which the material is subject (Article 19). It may also correspond to a pool code, where authorised pursuant to Article 20. The Commission shall communicate the appropriate codes to the installations on request. 31. Previous element category: Code of the element category of nuclear material before the category change. The corresponding code after the change shall be reported in field 25. Use only with the inventory change codes CE, CB and CC. 32. Previous obligation: Code of the particular safeguard obligation to which the nuclear material was subject before the change. The corresponding obligation code after the change shall be reported in field 30. Use only with the inventory change codes BR, CR, PR and SR. 33. Shipper CAM code: Code of installation of Annex I-N shipping material. The Commission shall communicate to the operator or entity the appropriate code. Simplified reporting procedures apply to these operators. 34. Receiver CAM code: Code of installation of Annex I-N receiving material. The Commission shall communicate to the operator or entity the appropriate code. Simplified reporting procedures apply to these operators. 35. Document: Operator-defined reference to supporting document(s). 36. Container ID: Operator-defined container number. Optional data element which can be used in those cases where the container number does not appear in the batch designation. 37. Correction: Corrections have to be made by deleting the wrong line(s) and adding the correct one(s), where appropriate. The following codes shall be used: ELI: http://data.europa.eu/eli/dec/2025/492/oj 89/136EN OJ L, 14.3.2025 Code Explanation D Deletion. The line to be deleted must either be: — identified by indicating in field 38 the report number (4) and in field 39 the line number (22), as well as in field 43 the CRC (42) which were declared for the original line. Other fields need not be reported; or — repeated in its entirety, except for the accounting date (23) which shall show the date on which the deletion was made in the accounting records. Fields may contain codes no longer in use under this Regulation A Addition (forming part of a deletion/addition pair). The correct line shall be reported with all data fields, including the ‘previous report’ field (38) and the ‘previous line’ field (39). The ‘previous line’ field (39) shall repeat the line number (22) of the line being replaced by the deletion/addition pair. The accounting date (23) shall show the date on which the addition was made in the accounting records L Late line (stand-alone addition). The late line to be added shall be reported with all data fields, including the ‘previous report’ field (38). The ‘previous report’ field (38) shall contain the report number (4) of the report in which the late line should have been included. The accounting date (23) shall show the date on which the late line was introduced in the accounting records 38. Previous report: Indicate the report number (4) of the line to be corrected. 39. Previous line: For deletions, or additions forming part of a deletion/addition pair, indicate the line number (22) of the line to be corrected. 40. Comment: Free-text comment field for short comments by operator. 41. Burn-Up: For inventory changes of type NP or NL in nuclear reactors, burn-up in MWdays/tonne. 42. CRC: Hash code of line for quality control purposes. The Commission shall inform the operator of the algorithm to be used. 43. Previous CRC: Hash code of the line to be corrected. 44. Advance notification reference code: Reference code used for the advance notification. To be used with inventory codes SF, RF, SD and RD when so required (Articles 23 and 24). 45. Campaign: Unique identifier for the reprocessing campaign. Use only for inventory changes in the process material balance area(s) of spent fuel reprocessing installations. 46. Reactor: Unique identifier for the reactor from which irradiated fuel is being stored or reprocessed. Use only for inventory changes in spent fuel storage or reprocessing installations. 47. Safeguards info: Additional information, if so required by the Commission. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS 1. In the case of transfer of nuclear material, the shipper shall provide the receiver with all the necessary information for the inventory change report. 2. If numerical data contain fractions of units, a point shall precede the decimal digits. 90/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 3. The following 55 characters may be used: the 26 capital letters A to Z, figures 0 to 9 and the characters ‘plus’, ‘minus’, ‘slash’, ‘asterisk’, ‘space’, ‘equal’, ‘greater than’, ‘less than’, ‘point’, ‘comma’, ‘open bracket’, ‘close bracket’, ‘colon’, ‘dollar’, ‘percent’, ‘quotation mark’, ‘semi-colon’, ‘question mark’ and ‘ampersand’. 4. Under Article 79 of the Treaty, those subject to safeguards requirements are to notify the authorities of the Member State concerned of any communications they make to the Commission pursuant to Article 78 and the first paragraph of Article 79 of the Treaty. 5. Reports shall be prepared in xml format using the template provided by the Commission through a dedicated platform. 6. The reports, duly completed and signed (digitally if possible), shall be forwarded to the European Commission, Euratom Safeguards. ELI: http://data.europa.eu/eli/dec/2025/492/oj 91/136EN OJ L, 14.3.2025 ANNEX IV MATERIAL BALANCE REPORT (MBR) Header Label/tag Content Comments # MBA Character (4) MBA code of reporting MBA 1 Report type Character (1) M for Material Balance Report 2 Report date Date (DDMMYYYY) Date on which the report was completed 3 Start report Date (DDMMYYYY) Starting date of MBR (date of last PIT + 1 day) 4 End report Date (DDMMYYYY) End date of MBR (date of current PIT) 5 Report number Number Sequential number, no gaps 6 Line count Number Total number of lines reported 7 Reporting person Character (64) Name of person responsible for the report 8 Entries Label/tag Content Comments # IC code Character (2) Type of inventory change 9 Line number Number Sequential number, no gaps 10 Element category Character (1) Category of nuclear material 11 Element weight Number (24,3) Element weight 12 Isotope Character (1) G for U-235, K for U-233, J for a mixture of U-235 and 13 U-233 Fissile weight Number (24,3) Weight of fissile isotope 14 Obligation Character (5) Safeguard obligation 15 92/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 Label/tag Content Comments # Correction Character (1) D for deletions, A for additions forming part of 16 a deletion/addition pair, L for late lines (stand-alone additions) Previous report Number Report number of line to be corrected 17 Previous line Number Line number of line to be corrected 18 Comment Character (256) Operator comment 19 CRC Number Hash code of line for quality control purposes 20 Previous CRC Number Hash code of line to be corrected 21 Explanatory notes 1. MBA: Code of the reporting material balance area. This code is notified to the installation concerned by the Commission. 2. Report type: M for material balance reports. 3. Report date: Date on which the report was completed. 4. Start report: Start date of MBR, date of the day immediately following the day of the previous physical inventory taking. 5. End report: End date of MBR, date of current physical inventory taking. 6. Report number: Sequential number used for inventory change reports, material balance reports and physical inventory listings, no gaps. 7. Line count: Total number of lines reported. 8. Reporting person: Name of the person responsible for the report. 9. IC code: The different types of inventory information and of inventory change shall be entered in the sequence indicated below. The following codes shall be used: Keyword Code Explanation Beginning physical inventory PB Physical inventory at the beginning of the reporting period (shall be equal to the physical inventory at the end of the previous reporting period). Separate lines per element and per safeguard obligation Inventory changes (only codes in For each type of inventory change, one consolidated line (per element the list below) and per safeguard obligation) has to be entered for the entire reporting period (first increases, then decreases). ELI: http://data.europa.eu/eli/dec/2025/492/oj 93/136EN OJ L, 14.3.2025 Keyword Code Explanation Ending book inventory BA Book inventory at the end of the reporting period. It shall be equal to the arithmetic sum of the MBR entries above. Separate lines per element and per safeguard obligation Ending physical inventory PE Physical inventory at the end of the reporting period. Separate lines per element and per safeguard obligation Material unaccounted for MF Material unaccounted for. Shall be calculated as ‘ending physical inventory (PE)’ minus ‘ending book inventory (BA)’. Separate lines per element and per safeguard obligation For inventory changes, one of the following codes shall be used: Keyword Code Explanation Receipt RD Receipt of nuclear material from a material balance area within the European Union. Import RF Import of nuclear material from a third country. Receipt from non-safeguarded RN Receipt of nuclear material from a non-safeguarded activity activity (Article 39). Shipment SD Transfer of nuclear material to a material balance area within the European Union. Export SF Export of nuclear material to a third country Shipment to non-safeguarded SN Transfer of nuclear material to a non-safeguarded activity (Article 39). activity Transfer to conditioned waste TC Nuclear material contained in waste that is measured or estimated on the basis of measurements, and which has been conditioned in such a way (e.g. in glass, cement, concrete or bitumen) that it is not suitable for further nuclear use. Installations may be authorized to use this code based on a reasoned and justified request and agreed reporting modalities. Separate records shall be kept for this type of material. 94/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 Keyword Code Explanation Transfer to a geological disposal TG Transfer of nuclear material which is neither considered as retained area nor as conditioned waste into a geological disposal area. Discards to the environment TE Nuclear material that is measured or estimated on the basis of measurements, and which has been irrevocably discarded to the environment as the result of a planned discharge (Article 36(1)(a)). Transfer to retained waste TW Nuclear material generated from processing or from an operational accident contained in waste that is measured or estimated on the basis of measurements, and which has been transferred to a specific location within the material balance area from which it could be retrieved and which is deemed to be not recoverable for the time being. Separate records shall be kept for this type of material. Retransfer from conditioned FC Retransfer of conditioned waste to the inventory of the material waste balance area. This applies whenever conditioned waste undergoes processing. Retransfer from a geological dis- FG Retrieval of nuclear material from a geological disposal area after it posal area was declared as transfer to that geological disposal area. Use of this code requires a special report to be sent to the Commission. Retransfer from retained waste FW Retransfer of retained waste to the inventory of the material balance area. This applies whenever retained waste is retrieved from the specific location within the material balance area, either for any processing involving the separation of elements in the material balance area or for any shipment from the material balance area. Accidental loss LA Irretrievable and inadvertent loss of a quantity of nuclear material as the result of an operational accident. Use of this code requires a special report to be sent to the Commission. Accidental gain GA Nuclear material unexpectedly found, except when detected in the course of a physical inventory taking. Use of this code requires a special report to be sent to the Commission. Decommissioning gain GD Nuclear material arisen during decommissioning activities or exceptional operations. Installations may be authorized to use this code based on a reasoned and justified request. Category change CE Accountancy transfer of a quantity of nuclear material from one category (Article 21) to another as a result of an enrichment process (only one line to be reported per category change). Category change CB Accountancy transfer of a quantity of nuclear material from one category (Article 21) to another as a result of a blending operation (only one line to be reported per category change). ELI: http://data.europa.eu/eli/dec/2025/492/oj 95/136EN OJ L, 14.3.2025 Keyword Code Explanation Category change CC Accountancy transfer of a quantity of nuclear material from one category (Article 21) to another for all types of category change not covered by codes CE and CB (only one line to be reported per category change), such as during irradiation or for exceptional and justified reasons. Change in particular obligation BR Accountancy transfer of a quantity of nuclear material from one particular safeguard obligation to another (Article 19(1)), to balance the total uranium stock following a blending operation (only one line to be reported per change of obligation). Change in particular obligation PR Accountancy transfer of a quantity of nuclear material from one particular safeguard obligation to another (Article 19(1)), used when nuclear material enters or leaves an accountancy pool (only one line to be reported per change of obligation). Change in particular obligation SR Accountancy transfer of a quantity of nuclear material from one particular safeguard obligation to another (Article 19(1)), following an obligation exchange or a substitution (only one line to be reported per change of obligation). The use of this code requires prior authorization (Article 20(1)). Change in particular obligation CR Accountancy transfer of a quantity of nuclear material from one particular safeguard obligation to another (Article 19(1)), for all cases not covered by codes BR, PR or SR (only one line to be reported per change of obligation). Nuclear production NP Increase in the quantity of nuclear material due to nuclear transformation. Nuclear loss NL Decrease in the quantity of nuclear material due to nuclear transformation. Shipper/receiver difference DI Shipper/receiver difference. New measurement NM Quantity of nuclear material, in one particular batch, accounted for in the nuclear material balance area, being the difference between a newly measured quantity and the quantity formerly accounted for, and which is neither a shipper/receiver difference nor a correction. Roundings RA Rounding adjustment to make the sum of the quantities reported in a given period coincide with the ending book inventory of the material balance area. Isotope adjustment R5 Adjustment to make the sum of the isotope quantities reported coincide with the ending book inventory for U-235 of the material balance area. 96/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 Keyword Code Explanation Material production MP Quantity of nuclear material, obtained from substances originally not subject to safeguards, which has become subject to safeguards because its concentration now exceeds the minimum levels. Termination of use TU Quantity of nuclear material considered as irrecoverable for practical or economic reasons which is incorporated in end products used for non-nuclear purposes (Article 36(1)(b)). The use of this code requires prior authorization. Termination of safeguards TZ Quantity of nuclear material considered as irrecoverable for practical or economic reasons which is contained in waste in very low concentrations measured or estimated on the basis of measurements, even if these materials are not discarded to the environment ( Article 36(1)(c)). Installations may be authorized to use this code based on a reasoned and justified request and agreed reporting modalities. 10. Line number: Sequential number starting with 1, no gaps. 11. Element category: The element category of the nuclear material, using the category codes as laid out in Annex III (25) to this Regulation. 12. Element weight: The weight of the element category referred to in field 11 shall be reported. All weights shall be reported in grams. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places. 13. Isotope: This code indicates the kind of fissile isotopes involved and shall be used when the weight of fissile isotopes is reported. Use the codes as laid out in Annex III (27) to this Regulation. 14. Fissile weight: Unless otherwise stated in the particular safeguard provisions, the weight of fissile isotopes shall only be reported for enriched uranium and category changes involving enriched uranium. All weights shall be reported in grams. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places. 15. Obligation: Indication of the particular safeguard obligation assumed by the Community under an Agreement concluded with a third country or an international organisation, to which the material is subject (Article 19). It may also correspond to a pool code, where authorised pursuant to Article 20. The Commission shall communicate the appropriate codes to the installations on request. 16. Correction: Corrections have to be made by deleting the wrong line(s) and adding the correct one(s), where appropriate. The following codes shall be used: ELI: http://data.europa.eu/eli/dec/2025/492/oj 97/136EN OJ L, 14.3.2025 Code Explanation D Deletion. The line to be deleted shall either be: — identified by indicating in field 17 the report number (6) and in field 18 the line number (11), as well as in field 21 the CRC (20) which were declared for the original line. Other fields need not be reported; or — repeated in its entirety. Fields may contain codes no longer in use under this Regulation A Addition (forming part of a deletion/addition pair). The correct line shall be reported with all data fields, including the ‘previous report’ field (17) and the ‘previous line’ field (18). The ‘previous line’ field (18) shall repeat the line number (10) of the line being replaced by the deletion/addition pair L Late line (stand-alone addition). The late line to be added shall be reported with all data fields, including the ‘previous report’ field (17). The ‘previous report’ field (17) shall contain the report number (6) of the report in which the late line should have been included 17. Previous report: Indicate the report number (6) of the line to be corrected. 18. Previous line: For deletions, or additions forming part of a deletion/addition pair, indicate the line number (10) of the line to be corrected. 19. Comment: Free-text comment field for short comments by operator. 20. CRC: Hash code of line for quality control purposes. The Commission shall inform the operator of the algorithm to be used. 21. Previous CRC: Hash code of the line to be corrected. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS General remarks 2, 3, 4, 5 and 6 at the end of Annex III apply mutatis mutandis. 98/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX V PHYSICAL INVENTORY LISTING (PIL) Header Label/Tag Content Comments # MBA Character (4) MBA code of reporting MBA 1 Report type Character (1) P for physical inventory listings 2 Report date Date (DDMMYYYY) Date on which the report was completed 3 Report number Number Sequential number, no gaps 4 PIT date Date (DDMMYYYY) Date on which the physical inventory was taken 5 Line count Number Total number of lines reported 6 Reporting person Character (64) Name of person responsible for the report 7 Entries Label/Tag Content Comments # Item ID Character (20) Sequential number 8 Batch Character (20) Unique identifier for a batch of nuclear material 9 KMP Character (1) Key measurement point 10 Measurement Character (1) Measurement code 11 Element category Character (1) Category of nuclear material 12 Material form Character (2) Material form code 13 Material container Character (1) Material container code 14 Material state Character (1) Material state code 15 Line number Number Sequential number, no gaps 16 ELI: http://data.europa.eu/eli/dec/2025/492/oj 99/136EN OJ L, 14.3.2025 Label/Tag Content Comments # Number of items Number Number of items 17 Element weight Number (24,3) Element weight 18 Isotope Character (1) G for U-235, K for U-233, J for a mixture of U-235 and 19 U-233 Fissile weight Number (24,3) Weight of fissile isotope 20 Obligation Character (5) Safeguard obligation 21 Document Character (70) Operator-defined reference to supporting documents 22 Container ID Character (20) Operator-defined identifier for the container 23 Correction Character (1) D for deletions, A for additions forming part of 24 a deletion/addition pair, L for late lines (stand-alone additions) Previous report Number Report number of line to be corrected 25 Previous line Number Line number of line to be corrected 26 Comment Character (256) Operator comment 27 CRC Number Hash code of line for quality control purposes 28 Previous CRC Number Hash code of line to be corrected 29 Explanatory notes 1. MBA: Code of the reporting material balance area. This code is notified to the installation concerned by the Commission. 2. Report type: P for physical inventory listings. 3. Report date: Date on which the report was completed. 4. Report number: Sequential number used for inventory change reports, material balance reports and physical inventory listings, no gaps. 5. PIT date: Day, month and year when the physical inventory was taken, reflecting the situation at 24:00. 6. Line count: Total number of lines reported. 7. Reporting person: Name of the person responsible for the report. 100/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 8. Item ID: Sequential number, common to all PIL lines related to the same physical object. 9. Batch: If batch follow-up is required in the particular safeguard provisions, the batch designation previously used for the batch in an inventory change report or in a previous physical inventory listing shall be used. 10. KMP: Key measurement point. The codes are notified to the installation concerned and listed in the particular safeguard provisions. If no specific codes have been notified, ‘&’ shall be used. 11. Measurement: The basis on which the quantity of nuclear material reported was established has to be indicated, using the category codes as laid out in Annex III (13) to this Regulation. 12. Element category: The element category of the nuclear material, using the category codes as laid out in Annex III (25) to this Regulation. 13. Material form: The material form of the batch, using the description of materials as laid out in Annex III (14) to this Regulation. 14. Material container: The type of container holding the nuclear material, using the category codes as laid out in Annex III (15) to this Regulation. 15. Material state: The material state of the batch, using material state codes as laid out in Annex III (16) to this Regulation. 16. Line number: Sequential number starting with 1 in each report, no gaps. 17. Number of items: Each physical inventory line shall indicate the number of items involved. If a group of items belonging to the same batch are reported as several lines, the sum of the number of items reported shall equal the total number of items in the group. If the lines involve more than one element category, the number of items shall be declared in the line(s) for the element category of highest safeguards relevance only (in descending order: P, H, L, N, D, T). 18. Element weight: The weight of the element category referred to in field 12 shall be reported. All weights shall be reported in grams. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places. 19. Isotope: This code indicates the kind of fissile isotopes involved and shall be used when the weight of fissile isotopes is reported. Use the codes as laid out in Annex III (27) to this Regulation. 20. Fissile weight: Unless otherwise stated in the particular safeguard provisions, the weight of fissile isotopes shall only be reported for enriched uranium and category changes involving enriched uranium. All weights shall be reported in grams. The decimal digits appearing in the accounting lines can be reported up to a maximum of three decimal places. 21. Obligation: Indication of the particular safeguard obligation assumed by the Community under an Agreement concluded with a third country or an international organisation, to which the material is subject (Article 19). It may also correspond to a pool code, where authorised pursuant to Article 20. The Commission shall communicate the appropriate codes to the installations on request. 22. Document: Operator-defined reference to supporting document(s). 23. Container ID: Operator-defined container number. Optional data element which can be used in those cases where the container number does not appear in the batch designation. 24. Correction: Corrections have to be made by deleting the wrong line(s) and adding the correct one(s), where appropriate. ELI: http://data.europa.eu/eli/dec/2025/492/oj 101/136EN OJ L, 14.3.2025 The following codes shall be used: Code Explanation D Deletion. The line to be deleted shall either be: — identified by indicating in field 25 the report number (4) and in field 26 the line number (16), as well as in field 29 the CRC (28) which were declared for the original line. Other fields need not be reported; or — repeated in its entirety. Fields may contain codes no longer in use under this Regulation A Addition (forming part of a deletion/addition pair). The correct line shall be reported with all data fields including the ‘previous report’ field (25) and the ‘previous line’ field (26). The ‘previous line’ field (26) shall contain the line number (16) of the line being replaced by the deletion/addition pair. L Late line (stand-alone addition). The late line to be added shall be reported with all data fields, including the ‘previous report’ field (25). The ‘previous report’ field (25) shall contain the report number (4) of the report in which the late line should have been included. 25. Previous report: Indicate the report number (4) of the line to be corrected. 26. Previous line: For deletions, or additions forming part of a deletion/addition pair, indicate the line number (16) of the line to be corrected. 27. Comment: Free-text comment field for short comments by operator (replaces separate concise note). 28. CRC: Hash code of line for quality control purposes. The Commission shall inform the operator of the algorithm to be used. 29. Previous CRC: Hash code of the line to be corrected. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS 1. If, on the date the physical inventory was taken, there was no nuclear material in the material balance area, only labels from 1 to 7, 16, 17 and 28 above shall be filled in. In addition, labels 24-26 and 29 shall be filled in where appropriate. 2. General remarks 2, 3, 4, 5 and 6 at the end of Annex III apply mutatis mutandis. 102/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX VI ADVANCE NOTIFICATION OF EXPORTS/SHIPMENTS OF NUCLEAR MATERIAL Header Label/Tag Content Comments # Legal entity or name of Character (256) Legal entity or installation name 1 installation Report type Character (4) ANXS to be used for this report type 2 Advance notification Character (12) Reference code for advance notification 3 reference code Shipper MBA Character (4) MBA code of shipping installation 4 Receiver MBA Character (4) MBA code of receiving installation 5 Shipping installation Character (256) Contact details of shipping installation 6 Receiving installation Character (256) Contact details of receiving installation 7 Report date Date (DDMMYYYY) Date on which the report was completed 8 Reporting person Character (64) Name of person responsible for the report 9 Entries Label/Tag Content Comments # Line number Number Sequential number, no gaps 10 Batch Character (20) Unique identifier for a batch of nuclear material 11 Element category Character (1) Category of nuclear material 12 Obligation Character (5) Safeguard obligation 13 Chemical composition Character (64) Chemical composition 14 Isotope Character (1) Uranium isotope 15 Enrichment Number (3,3) Percent composition of uranium-235 16 ELI: http://data.europa.eu/eli/dec/2025/492/oj 103/136EN OJ L, 14.3.2025 Label/Tag Content Comments # Material state Character (1) Material state 17 Material form Character (2) Material form 18 Number of items Number Number of items 19 Description of containers and Character (256) Description of containers and sealing options 20 seals Element weight Number (24,3) Element weight 21 Fissile weight Number (24,3) Fissile isotope weight 22 Material container Character (1) Material container code 23 Means of transport Character (1) (for each Means of transport of nuclear material 24 means of transport) Location where material will Character (256) Location where the nuclear material is prepared for 25 be stored or prepared shipping Last date when material can Date (DDMMYYYY) Last date when nuclear material can be identified 26 be identified Date of dispatch Date (DDMMYYYY) Expected date of dispatch 27 Date of arrival Date (DDMMYYYY) Expected date of arrival at destination 28 Intended use Character (256) Intended use of the nuclear material 29 Euratom Supply Agency Character (64) ESA contractual reference number 30 (ESA) contractual reference Explanatory notes 1. Legal entity or name of installation: The name of the legal entity or the installation notifying the Commission. 2. Report type: ANXS to be used for this report type. 3. Advance notification reference code: The reference code for advance notifications to be used in the inventory change report. 4. Shipper MBA: The code of the shipper material balance area as notified by the Commission to the installation concerned. 104/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 5. Receiver MBA: The code of the receiver material balance area in the case of intra-EU transfer and, if known, in the case of export to a third country. 6. Shipping installation: The name, address and country of the installation shipping the nuclear material. 7. Receiving installation: The name, address and country of the installation receiving the nuclear material. 8. Report date: The date on which the report was completed. 9. Reporting person: Name of the person responsible for the report. 10. Line number: Sequential number starting with 1 in each report, no gaps. 11. Batch: The identification number of the batch. The information shall be inserted for each batch. 12. Element category: The category of nuclear material. Use the category codes as laid out in Annex III (25) to this Regulation. 13. Obligation: Indication of the particular safeguard obligation assumed by the Community under an Agreement concluded with a third country or an international organisation, to which the material is subject (Article 19). The Commission shall communicate the appropriate codes to the installations on request. The information shall be inserted for each batch. 14. Chemical composition: The chemical composition of the batch. The information shall be inserted for each batch. 15. Isotope: This code indicates the kind of fissile isotopes involved and shall be used when the weight of fissile isotopes is reported. Use the isotope codes as laid out in Annex III (27) to this Regulation. The information shall be inserted for each batch containing uranium. 16. Enrichment: Percent composition of U-235. The information shall be inserted for each batch containing uranium. 17. Material state: The material state of the batch, using material state codes as laid out in Annex III (16) to this Regulation. The information shall be inserted for each batch. 18. Material form: The material form of the batch, using the description of materials as laid out in Annex III (14) to this Regulation. The information shall be inserted for each batch. 19. Number of items: The number of items included in the batch, in accordance with Annex III (24) to this Regulation. 20. Description of containers and seals: A description of the containers, including features that would permit sealing. The information shall be inserted for each batch. 21. Element weight: The element weight shall be given in grams. The information shall be inserted for each batch. 22. Fissile weight: The weight of the fissile isotope(s) (for low enriched uranium and high enriched uranium: weight of isotope U-233 and U-235) shall be given in grams. The information shall be inserted for each batch containing uranium. 23. Material container: The type of container holding the nuclear material, using the category codes as laid out in Annex III (15) to this Regulation. 24. Means of transport: Indicate, where appropriate, the means of transport. More than one code may be used if several means of transport are used. In such cases, the codes shall be separated by semi-colons. The following codes shall be used: Means of transport Code Air A ELI: http://data.europa.eu/eli/dec/2025/492/oj 105/136EN OJ L, 14.3.2025 Means of transport Code Water W Road R Train T Other O 25. Location where material will be stored or prepared: The location within the material balance area where the nuclear material is prepared for shipping and can be identified, and where its quantity and composition can be verified. 26. Last date when material can be identified: The last date when nuclear material can be identified and when its quantity and composition can be verified. 27. Date of dispatch: Expected date of dispatch. One date per batch shall be indicated. 28. Date of arrival: Expected date of arrival at destination. One date per batch shall be indicated. 29. Intended use: The use to which the nuclear material is assigned. 30. Euratom Supply Agency (ESA) contractual reference: Indicate, where appropriate: — ESA contractual reference or, if not available, the date on which the contract was concluded or considered as concluded by the Supply Agency, and any useful references. — for jobbing contracts (Article 75 of the Treaty) and for contracts for the supply of small quantities of material (Article 74 of the Treaty, and Commission Regulation No 17/66/Euratom as amended by Regulation (Euratom) No 3137/74), the date of notification to ESA and any useful references. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS 1. All requested information shall be provided, when applicable. 2. In the case of an intra-EU transfer, the shipper shall provide the receiver with all the necessary information. 3. If numerical data contain fractions of units, a point shall precede the decimal digits. 4. The following 55 characters may be used: the 26 capital letters A to Z, figures 0 to 9 and the characters ‘plus’, ‘minus’, ‘slash’, ‘asterisk’, ‘space’, ‘equal’, ‘greater than’, ‘less than’, ‘point’, ‘comma’, ‘open bracket’, ‘close bracket’, ‘colon’, ‘dollar’, ‘percent’, ‘quotation mark’, ‘semi-colon’, ‘question mark’ and ‘ampersand’. 5. Under Article 79 of the Treaty, those subject to safeguards requirements shall notify the authorities of the Member State concerned of any communications they make to the Commission pursuant to Article 78 and the first paragraph of Article 79 of the Treaty. 6. Reports shall be prepared in xml format using the template provided by the Commission through a dedicated platform. 7. The reports, duly completed and signed (digitally if possible), shall be forwarded to the European Commission, Euratom Safeguards. 106/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX VII ADVANCE NOTIFICATION OF IMPORTS/RECEIPTS OF NUCLEAR MATERIAL Header Label/Tag Content Comments # Legal entity or name of Character (256) Legal entity or installation name 1 installation Report type Character (4) ANIR to be used for this report type 2 Advance notification Character (12) Reference code for advance notification 3 reference code Shipper MBA Character (4) MBA code of shipping installation 4 Receiver MBA Character (4) MBA code of receiving installation 5 Shipping installation Character (256) Contact details of shipping installation 6 Receiving installation Character (256) Contact details of receiving installation 7 Report date Date (DDMMYYYY) Date on which the report was completed 8 Reporting person Character (64) Name of person responsible for the report 9 Entries Label/Tag Content Comments # Line number Number Sequential number, no gaps 10 Batch Character (20) Unique identifier for a batch of nuclear material 11 Element category Character (1) Category of nuclear material 12 Obligation Character (5) Safeguard obligation 13 Chemical composition Character (64) Chemical composition 14 Isotope Character (1) Uranium fissile isotope 15 Enrichment Number (3,3) Percent composition of uranium-235 16 ELI: http://data.europa.eu/eli/dec/2025/492/oj 107/136EN OJ L, 14.3.2025 Label/Tag Content Comments # Material state Character (1) Material state 17 Material form Character (2) Material form 18 Number of items Number Number of items 19 Description of containers and Character (256) Description of containers and sealing options 20 seals Element weight Number (24,3) Element weight 21 Fissile weight Number (24,3) Fissile isotope weight 22 Means of transport Character (1) (for each Means of transport of nuclear material 23 means of transport) Date of arrival Date (DDMMYYYY) Date of arrival of nuclear material 24 Location where materials will Character (256) Location where nuclear material will be unpacked 25 be unpacked Date when materials will be Date (DDMMYYYY) Date when nuclear material will be unpacked 26 unpacked Intended use Character (256) Intended use for nuclear material 27 Euratom Supply Agency Character (64) ESA contractual reference number 28 (ESA) contractual reference Explanatory notes 1. Legal entity or name of installation: The name of the legal entity or the installation notifying the Commission. 2. Report type: ANIR to be used for this report type. 3. Advance notification reference code: The reference code for advance notifications to be used in the inventory change report. 4. Shipper MBA: The code of the shipper material balance area in the case of intra-EU transfer and, if known, in the case of import from a third country. 5. Receiver MBA: The code of the receiver material balance area as notified by the Commission to the installation concerned. 6. Shipping installation: The name, address and country of the installation shipping the nuclear material. 7. Receiving installation: The name, address and country of the installation receiving the nuclear material. 108/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 8. Report date: The date on which the report was completed. 9. Reporting person: Name of the person responsible for the report. 10. Line number: Sequential number starting with 1 in each report, no gaps. 11. Batch: The Identification number of the batch. The information shall be inserted for each batch. 12. Element category: The category of nuclear material. Use the category codes as laid out in Annex III (25) to this Regulation. 13. Obligation: Indication of the particular safeguard obligation assumed by the Community under an Agreement concluded with a third country or an international organisation, to which the material is subject (Article 19). The Commission shall communicate the appropriate codes to the installations on request. The information shall be inserted for each batch. 14. Chemical composition: The chemical composition of the batch. The information shall be inserted for each batch. 15. Isotope: This code indicates the kind of fissile isotopes involved and shall be used when the weight of fissile isotopes is reported. Use the isotope codes as laid out in Annex III (27) to this Regulation. The information shall be inserted for each batch containing uranium. 16. Enrichment: Percent composition of uranium-235. The information shall be inserted for each batch containing uranium. 17. Material state: The material state of the batch, using material state codes as laid out in Annex III (16) to this Regulation. The information shall be inserted for each batch. 18. Material form: The material form of the batch, using the description of materials as laid out in Annex III (14) to this Regulation. The information shall be inserted for each batch. 19. Number of items: The number of items included in the batch, in accordance with Annex III (24) to this Regulation. 20. Description of containers and seals: A description of the containers, including features that would permit sealing. The information shall be inserted for each batch. 21. Element weight: The element weight shall be given in grams. The information shall be inserted for each batch. 22. Fissile weight: The weight of the fissile isotope(s) (for low enriched uranium and high enriched uranium: weight of isotope U-233 and U-235) shall be given in grams. The information shall be inserted for each batch containing enriched uranium. 23. Means of transport: Indicate, where appropriate, the means of transport using the codes as set out in Annex VI, point (24), to this Regulation. 24. Date of arrival: The expected or actual date of arrival in the reporting material balance area. 25. Location where materials will be unpacked: The location within the material balance area where the material will be unpacked and can be identified, and where its quantity and composition can be verified. 26. Date when materials will be unpacked: The expected date when the materials will be unpacked. 27. Intended use: The use to which the nuclear material is assigned. 28. Euratom Supply Agency (ESA) contractual reference: Indicate, where appropriate: — ESA contractual reference or, if not available, the date on which the contract was concluded or considered as concluded by ESA, and any useful references. ELI: http://data.europa.eu/eli/dec/2025/492/oj 109/136EN OJ L, 14.3.2025 — For jobbing contracts (Article 75 of the Treaty) and for contracts for the supply of small quantities of material (Article 74 of the Treaty, and Commission Regulation No 17/66/Euratom as amended by Regulation (Euratom) No 3137/74), the date of notification to the supply agency and any useful references. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS 1. All requested information shall be provided, when applicable. 2. If numerical data contain fractions of units, a point shall precede the decimal digits. 3. The following 55 characters may be used: the 26 capital letters A to Z, figures 0 to 9 and the characters ‘plus’, ‘minus’, ‘slash’, ‘asterisk’, ‘space’, ‘equal’, ‘greater than’, ‘less than’, ‘point’, ‘comma’, ‘open bracket’, ‘close bracket’, ‘colon’, ‘dollar’, ‘percent’, ‘quotation mark’, ‘semi-colon’, ‘question mark’ and ‘ampersand’. 4. Under Article 79 of the Treaty, those subject to safeguards requirements shall notify the authorities of the Member State concerned of any communications they make to the Commission pursuant to Article 78 and the first paragraph of Article 79 of the Treaty. 5. Reports shall be prepared in xml format using the template provided by the Commission through a dedicated platform. 6. The reports, duly completed and signed (digitally if possible), shall be forwarded to the European Commission, Euratom Safeguards. 110/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX VIII REPORT OF ORE EXPORTS/SHIPMENTS Header Label/Tag Content Comments # Undertaking Character (256) Name and address of the reporting undertaking 1 Report type Character (5) OREXS to be used for this report type 2 Mine name Character (256) Name of the mine 3 Mine code Character (4) Code of the mine 4 Report year Year The year covered by the report 5 Report date Date (DDMMYYYY) Date when the report is transmitted 6 Reporting person Character (64) Name of person responsible for the report 7 Report number Number Unique reference number 8 Entries Label/Tag Content Comments # Line number Number Sequential number, no gaps 9 Date of dispatch Date (DDMMYYYY) Date of individual exports/shipments 10 Consignee Character (256) The recipient of the import/receipt 11 Uranium weight Number (24,3) Uranium weight 12 Thorium weight Number (24,3) Thorium weight 13 Comment Character (256) Additional comment 14 Explanatory notes 1. Undertaking: Name and address of the reporting undertaking. 2. Report type: OREXS to be used for this report type. ELI: http://data.europa.eu/eli/dec/2025/492/oj 111/136EN OJ L, 14.3.2025 3. Mine name: Name of the mine in respect of which the report is made. 4. Mine code: Code of the mine as notified to the undertaking by the Commission. 5. Report year: The calendar year that is covered by the report. 6. Report date: Date on which the report was completed. 7. Reporting person: Name of the person responsible for the report. 8. Report number: Sequential number (no gaps) for the report of ore exports/shipments. 9. Line number: Sequential number starting with 1 in each report, no gaps. 10. Date of dispatch: The date of individual exports/shipments. 11. Consignee: The recipient of the imports/receipts. 12. Uranium weight: The uranium weight in the ore, in grams. 13. Thorium weight: The thorium weight in the ore, in grams. 14. Comment: Any additional relevant information regarding the ore exports/shipments. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS 1. The shipment report is to be made at the latest by the end of January of each year for the previous year, with a separate entry for each consignee. A separate line in the report shall be introduced for each export consignment at the date of shipment. 2. All requested information shall be provided, when applicable. 3. In the case of an intra-EU transfer, the shipper shall provide the receiver with all the necessary information. 4. If numerical data contain fractions of units, a point shall precede the decimal digits. 5. The following 55 characters may be used: the 26 capital letters A to Z, figures 0 to 9 and the characters ‘plus’, ‘minus’, ‘slash’, ‘asterisk’, ‘space’, ‘equal’, ‘greater than’, ‘less than’, ‘point’, ‘comma’, ‘open bracket’, ‘close bracket’, ‘colon’, ‘dollar’, ‘percent’, ‘quotation mark’, ‘semi-colon’, ‘question mark’ and ‘ampersand’. 6. Under Article 79 of the Treaty, those subject to safeguards requirements shall notify the authorities of the Member State concerned of any communications they make to the Commission pursuant to Article 78 and the first paragraph of Article 79 of the Treaty. 7. Reports shall be prepared in xml format using the template provided by the Commission through a dedicated platform. 8. The reports, duly completed and signed (digitally if possible), shall be forwarded to the European Commission, Euratom Safeguards. 112/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX IX REQUEST FOR A DEROGATION UNDER ARTICLE 22 Header Label/Tag Content Comments # Installation Character (256) Name and address of the installation 1 Report type Character (5) DERRQ to be used for this report type 2 MBA Character (4) MBA code of the reporting MBA 3 Element category Character (1) Category of nuclear material 4 Derogation type Character (1) Type of derogation 5 Intended use Character (256) Intended use(s) of the nuclear material(s) 6 Request date Date (DDMMYYYY) Date on which the request is transmitted to the 7 Commission Reporting person Character (64) Name of person responsible for the report 8 Report number Number Unique reference number 9 Entries Label/Tag Content Comments # Line number Number Sequential number, no gaps 10 Enrichment Number (3,3) Percent composition of uranium-235 11 Isotopic composition Number (24,3) (for each Plutonium isotopic weights 12 isotope) Element weight Number (24,3) Element weight 13 Fissile weight Number (24,3) Weight of the fissile isotope 14 Chemical composition Character (64) Chemical composition(s) of the items in the 15 inventory ELI: http://data.europa.eu/eli/dec/2025/492/oj 113/136EN OJ L, 14.3.2025 Label/Tag Content Comments # Material form Character (2) Material form 16 Number of items Number Number of items 17 Obligation Character (5) Safeguard obligation 18 Explanatory Notes 1. Installation: Name and address of the installation. 2. Report type: DERRQ to be used for this report type. 3. MBA: Code of the material balance area. This code is notified to the installation concerned by the Commission. 4. Element category: The element category of the nuclear material, using the category codes as laid out in Annex III (25) to this Regulation. 5. Derogation type: The type of derogation (Article 22(2)) shall be indicated. The following codes shall be used: Type of derogation Code Small quantities kept unchanged for a long period of time A Exclusive use in non-nuclear activities B Use in sensing components C Pu with Pu-238 content exceeding 80 % D 6. Intended use: The intended use of the nuclear materials. 7. Request date: The date on which the request is transmitted to the Commission. 8. Reporting person: Name of the person responsible for the report. 9. Report number: Sequential number (no gaps) for the derogation request. 10. Line number: Sequential number starting with 1 in each report, no gaps. 11. Enrichment: Percent composition of uranium-235. The information shall be inserted for each batch containing uranium. 12. Isotopic composition: The isotopic composition of Pu shall be reported in the format as a list of weights separated by semi-colons to denote the weight of Pu-238, Pu-239, Pu-240, Pu-241 and Pu-242. 13. Element weight: The element weight shall be given in grams. 14. Fissile weight: The weight of the fissile isotope(s) (for low enriched uranium and high enriched uranium: weight of isotope U-233 and U-235) shall be given in grams. 15. Chemical composition: The chemical composition(s) of the items in the inventory. 114/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 16. Material form: The physical form(s) of the items in the inventory, using the description of materials as laid out in Annex III (14) to this Regulation. 17. Number of items: The number of items in the inventory. 18. Obligation: Indication of the particular safeguard obligation assumed by the Community under an Agreement concluded with a third country or an international organisation, to which the material is subject (Article 19). The Commission shall communicate the appropriate codes to the installations on request. The information shall be inserted for each batch. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS 1. A separate request shall be submitted for each type of derogation (Article 22(2)) and for each element category. 2. All requested information shall be provided, when applicable. 3. If numerical data contain fractions of units, a point shall precede the decimal digits. 4. The following 55 characters may be used: the 26 capital letters A to Z, figures 0 to 9 and the characters ‘plus’, ‘minus’, ‘slash’, ‘asterisk’, ‘space’, ‘equal’, ‘greater than’, ‘less than’, ‘point’, ‘comma’, ‘open bracket’, ‘close bracket’, ‘colon’, ‘dollar’, ‘percent’, ‘quotation mark’, ‘semi-colon’, ‘question mark’ and ‘ampersand’. 5. Under Article 79 of the Treaty, those subject to safeguards requirements shall notify the authorities of the Member State concerned of any communications they make to the Commission pursuant to Article 78 and the first paragraph of Article 79 of the Treaty. 6. Reports shall be prepared in xml format using the template provided by the Commission through a dedicated platform. 7. The reports, duly completed and signed (digitally if possible), shall be forwarded to the European Commission, Euratom Safeguards. ELI: http://data.europa.eu/eli/dec/2025/492/oj 115/136EN OJ L, 14.3.2025 ANNEX X INDICATIVE LIST OF INVENTORY ITEMS (LII) GENERAL REMARKS CONCERNING THE PROVISION OF THE LIST OF INVENTORY ITEMS 1. The information shall be provided for each item whenever it is needed for the normal operation of the installation. 2. The information may be provided as part of a larger set of information agreed between the Commission and the operator. 3. The following 55 characters may be used: the 26 capital letters A to Z, figures 0 to 9 and the characters ‘plus’, ‘minus’, ‘slash’, ‘asterisk’, ‘space’, ‘equal’, ‘greater than’, ‘less than’, ‘point’, ‘comma’, ‘open bracket’, ‘close bracket’, ‘colon’, ‘dollar’, ‘percent’, ‘quotation mark’, ‘semi-colon’, ‘question mark’ and ‘ampersand’. 4. If information is kept electronically by the installation, the list of inventory items shall be provided in electronic form. Header Label/Tag Content Comments # MBA Character (4) MBA code of reporting MBA 1 Report type Character (3) LII to be used for this report type 2 Report date Date (DDMMYYYY) Date on which the LII is valid 3 Reporting person Character (64) Name of person responsible for the report 4 Report number Number Unique reference number 5 Report version Number Version of the LII provided 6 Entries Label/Tag Content Comments # Line number Number Sequential number, no gaps 7 Item ID Character (20) Unique identifier for an item of nuclear material 8 Batch Character (20) Unique identifier for a batch of nuclear material 9 Container ID Character (20) Unique identifier for a container holding nuclear 10 material KMP Character (1) Key measurement point (KMP) 11 116/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 Label/Tag Content Comments # Area Character (10) Area indication (or key measurement point) 12 Sub area Character (10) Sub area indication 13 Element category Character (1) Category of nuclear material 14 Material form Character (2) Material form code 15 Material container Character (1) Material container code 16 Material state Character (1) Material state code 17 Volume Number (24,3) Volume of fluid in tank 18 Gross weight Number (24,3) Gross weight of the container and the nuclear 19 material Nuclear material weight Number (24,3) Total weight of the nuclear material 20 Uranium weight Number (24,3) Total uranium weight 21 U233 weight Number (24,3) Weight uranium 233 isotope 22 U235 weight Number (24,3) Weight uranium 235 isotope 23 Plutonium weight Number (24,3) Total plutonium weight 24 Thorium weight Number (24,3) Total thorium weight 25 Obligation Character (5) Safeguard obligation 26 Accessibility for physical Character (1) Indication of the accessibility of the item for 27 verification physical verification Comment Character (256) Operator comment 28 Explanatory notes 1. MBA: Code of the reporting material balance area. This code is notified to the installation concerned by the Commission. 2. Report type: LII to be used for this report type. 3. Report date: Date on which the list of inventory items is valid. 4. Reporting person: Name of the person responsible for the report. ELI: http://data.europa.eu/eli/dec/2025/492/oj 117/136EN OJ L, 14.3.2025 5. Report number: Sequential number (no gaps) for the list of inventory items. 6. Report version: Version number of the LII. Sequential number, where the initial LII provided shall be version 1, no gaps. 7. Line number: Sequential number starting with 1, no gaps. 8. Item ID: Unique identifier for the item. 9. Batch: Unique identifier for a batch of nuclear material comprising one or several items. The same batch identifier may therefore be used for several items. 10. Container ID: Unique identifier for the container. The same container ID may be used for several items. 11. KMP: Key measurement point. The codes are notified to the installation concerned and listed in the particular safeguard provisions. If no specific codes have been notified, ‘&’ shall be used. 12. Area: Area where the item is located. This could be a key measurement point. 13. Sub area: Sub area where the item is located. 14. Element category: The element category of the nuclear material, using the category codes as laid out in Annex III (25) to this Regulation. 15. Material form: The material form of the batch, using the description of materials as laid out in Annex III (14) to this Regulation. 16. Material container: The type of container holding the nuclear material, using the category codes as laid out in Annex III (15) to this Regulation. 17. Material state: The material state of the batch, using material state codes as laid out in Annex III (16) to this Regulation. 18. Volume: Volume of fluid in a tank, to be reported in liter, with up to a maximum of three decimal places. 19. Gross weight: Gross weight of the container and the nuclear material, to be reported in g, with up to a maximum of three decimal places. 20. Nuclear material weight: Total weight of the nuclear material, to be reported in g, with up to a maximum of three decimal places. 21. Uranium weight: The weight of uranium, to be reported in g, with up to a maximum of three decimal places. 22. U233 weight: The weight of uranium-233, to be reported in g, with up to a maximum of three decimal places. 23. U235 weight: The weight of uranium-235, to be reported in g, with up to a maximum of three decimal places. 24. Plutonium weight: The weight of plutonium, to be reported in g, with up to a maximum of three decimal places. 25. Thorium weight: The weight of thorium, to be reported in g, with up to a maximum of three decimal places. 26. Obligation: Indication of the particular safeguard obligation assumed by the Community under an Agreement concluded with a third country or an international organisation, to which the material is subject (Article 19). It may also correspond to a pool code, where authorised pursuant to Article 20. The Commission shall communicate the appropriate codes to the installations on request. 27. Accessibility for physical verification: Indication of the accessibility of the item for physical verification by Commission inspectors. The following codes shall be used: Accessibility Code Easy E 118/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 Accessibility Code Difficult D Impossible I Where ‘difficult’ or ‘impossible’ is used, a justification in the comment field (28) is required. 28. Comment: Optional comment. ELI: http://data.europa.eu/eli/dec/2025/492/oj 119/136EN OJ L, 14.3.2025 ANNEX XI OUTLINE PROGRAMME OF ACTIVITIES The outline programme of activities shall indicate, if applicable: — types of operations, e.g. proposed campaigns with indication of type and quantity of fuel elements to be fabricated or reprocessed, enrichment programmes, reactor operating programmes, with planned shutdowns, planned final disposal campaigns; — outline of main activities concerning construction or decommissioning of the installation; — expected schedule of arrival of materials, stating the amount of material per batch, the form (UF6, UO2, fresh or irradiated fuels, etc.), anticipated type of container or packaging; — anticipated schedule of waste processing campaigns (other than repackaging, or further conditioning without separation of elements), stating the amount of material per batch, the form (glass, high active liquid, etc.), anticipated duration and location; — dates by which the quantity of material in products is expected to be determined, and dates of dispatch; — dates and duration of physical inventory taking. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS 1. Under Article 79 of the Treaty, those subject to safeguards requirements shall notify the authorities of the Member State concerned of any communications they make to the Commission pursuant to Article 78 and the first paragraph of Article 79 of the Treaty. 2. The outline programme of activities shall be provided in electronic form and shall be forwarded to the European Commission, Euratom Safeguards. 120/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX XII ADVANCE NOTIFICATION OF FURTHER WASTE PROCESSING ACTIVITIES Header Label/Tag Content Comments # MBA Character (4) MBA code of reporting MBA 1 Report type Character (5) ANFWP to be used for this report type 2 Installation Character (256) Name of installation 3 Report date Date (DDMMYYYY) Date on which the report was completed 4 Reporting person Character (64) Name of person responsible for the report 5 Report number Number Unique reference number 6 Entries Label/Tag Content Comments # Line number Number Sequential number, no gaps 7 Item ID Character (20) Unique identifier for an item of nuclear material 8 Waste type Character (2) Waste type prior to conditioning 9 Conditioned form Character (2) Current conditioned form of the waste 10 Number of items Number Number of items 11 Plutonium weight Number (24,3) Pu weight 12 HEU weight Number (24,3) HEU weight 13 U233 weight Number (24,3) U233 weight 14 Storage location Character (256) The location of the waste at the time of the 15 declaration Processing location Character (256) The location where the planned processing is to 16 take place ELI: http://data.europa.eu/eli/dec/2025/492/oj 121/136EN OJ L, 14.3.2025 Label/Tag Content Comments # Processing start date Date (DDMMYYYY) Processing start date 17 Processing end date Date (DDMMYYYY) Processing end date 18 Processing purpose Character (256) The intended result of the processing 19 Previous report Number Report to which the current entry refers 20 Previous line Number Line in report indicated under 20 to which the 21 current entry refers Explanatory notes: 1. MBA: The MBA code of the reporting material balance area. This code is notified to the installation concerned by the Commission. 2. Report type: ANFWP to be used for this report type. 3. Installation: The name of the installation. 4. Report date: Date on which the report was completed. 5. Reporting person: Name of the person responsible for the report. 6. Report number: Sequential number (no gaps) for the advance notification of further waste processing activities. 7. Line number: Sequential number starting with 1, no gaps. 8. Item ID: Unique identifier for an item of nuclear material. 9. Waste type: The type of waste before any conditioning took place. Use the material form codes (those related to scrap, solid waste or liquid waste) as laid out in Annex III (14) to this Regulation. 10. Conditioned form: The current conditioned form of the waste. Use the material form codes (those related to conditioned waste) as laid out in Annex III (14) to this Regulation. 11. Number of items: The number of items, e.g. glass canisters or cement blocks, to be involved in a single processing campaign. 12. Plutonium weight: The total weight, in grams, of plutonium contained in all items. The weight may be based on the weight data used in the inventory change reports, and does not require a measurement of each item. 13. HEU weight: The total weight, in grams, of high enriched uranium contained in all items. The weight may be based on the weight data used in the inventory change reports, and does not require a measurement of each item. 14. U233 weight: The total weight, in grams, of uranium-233 contained in all items. The weight may be based on the weight data used in the inventory change reports, and does not require a measurement of each item. 15. Storage location: The ‘Location’ column shall include the name and address of the installation and shall show the location of the waste at the time of the declaration. The address shall be sufficiently detailed to indicate the geographical position of the location in relation to other locations specified in this or other declarations, and to indicate how the location may be reached should access be necessary. If a location is on the site of a nuclear installation, the installation code shall be included in the location column. 122/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 16. Processing location: The location where the planned processing is to take place. 17. Processing start date: The date on which the further processing campaign is expected to begin. 18. Processing end date: The date on which the further processing campaign is expected to end. 19. Processing purpose: The intended result of the processing, e.g. recovery of plutonium or separation of specified fission products. 20. Previous report: The ‘previous report’ indicates that the current entry adds to or updates information reported earlier in this referred report. 21. Previous line: The ‘previous line’ indicates that the current entry adds to or updates information reported earlier in this referred line of the report indicated under point 20. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS 1. This form shall be used for advance notification when further processing of waste is planned in accordance with Article 34. Any subsequent change in processing dates or processing location shall also be notified. A separate entry shall be made for each campaign of further processing other than repackaging of the waste, or its further conditioning not involving the separation of elements, carried out for storage or disposal purposes. 2. All requested information shall be provided, when applicable. 3. If numerical data contain fractions of units, a point shall precede the decimal digits. 4. The following 55 characters may be used: the 26 capital letters A to Z, figures 0 to 9 and the characters ‘plus’, ‘minus’, ‘slash’, ‘asterisk’, ‘space’, ‘equal’, ‘greater than’, ‘less than’, ‘point’, ‘comma’, ‘open bracket’, ‘close bracket’, ‘colon’, ‘dollar’, ‘percent’, ‘quotation mark’, ‘semi-colon’, ‘question mark’ and ‘ampersand’. 5. Under Article 79 of the Treaty, those subject to safeguards requirements shall notify the authorities of the Member State concerned of any communications they make to the Commission pursuant to Article 78 and the first paragraph of Article 79 of the Treaty. 6. Reports shall be prepared in xml format using the template provided by the Commission through a dedicated platform. 7. The reports, duly completed and signed (digitally if possible), shall be forwarded to the European Commission, Euratom Safeguards. ELI: http://data.europa.eu/eli/dec/2025/492/oj 123/136EN OJ L, 14.3.2025 ANNEX XIII ANNUAL REPORT ON EXPORTS/SHIPMENTS OF CONDITIONED WASTE Header Label/Tag Content Comments # Shipping installation Character (256) Contact details of the shipping installation 1 Shipper MBA Character (4) MBA code shipping installation 2 Report type Character (4) CWXS to be used for this report type 3 Start report Date (DDMMYYYY) Date of first day in reporting period 4 End report Date (DDMMYYYY) Date of last day in reporting period 5 Report date Date (DDMMYYYY) Date on which the report was completed 6 Reporting person Character (64) Name of person responsible for the report 7 Report number Number Unique reference number 8 Entries Label/Tag Content Comments # Line number Number Sequential number, no gaps 9 Date of dispatch Date (DDMMYYYY) Date of individual exports/shipments 10 Receiving installation Character (256) Contact details of receiving installation 11 Receiver MBA Character (4) MBA code of receiving installation 12 Conditioned form Character (2) The conditioned form of the waste 13 Plutonium weight Number (24,3) Plutonium weight 14 U235 weight Number (24,3) U235 weight 15 Uranium weight Number (24,3) Uranium weight 16 124/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 Label/Tag Content Comments # Thorium weight Number (24,3) Thorium weight 17 Comment Character (256) Additional comment 18 Explanatory notes: 1. Shipping installation: Name and address of the shipping installation. 2. Shipper MBA: The MBA code of the reporting material balance area. This code is notified to the installation concerned by the Commission. 3. Report type: CWXS to be used for this report type. 4. Start report: The date of first day in reporting period. 5. End report: The date of last day in reporting period. 6. Report date: Date on which the report was completed. 7. Reporting person: Name of the person responsible for the report. 8. Report number: Sequential number (no gaps) for the annual report on exports/shipments of conditioned waste. 9. Line number: Sequential number starting with 1, no gaps. 10. Date of dispatch: The date of individual exports/shipments. 11. Receiving installation: Name and address of receiving installation. 12. Receiver MBA: MBA code of the receiving installation, to be filled in for shipments to installations within the territories of the Member States. 13. Conditioned form: The conditioned form of the waste. Use the material form codes (those related to conditioned waste) as laid out in Annex III (14) to this Regulation. 14. Plutonium weight: The plutonium weight may be based on the weight data recorded at the installation and does not require measurements of the items exported/shipped. 15. U235 weight: The uranium-235 weight may be based on the weight data recorded at the installation and does not require measurements of the items exported/shipped. 16. Uranium weight: The total uranium weight may be based on the weight data recorded at the installation and does not require measurements of the items exported/shipped. 17. Thorium weight: The thorium weight may be based on the weight data recorded at the installation and does not require measurements of the items exported/shipped. 18. Comment: Optional comment may be added. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS 1. This report shall include all the exports or shipments of conditioned waste to installations within or outside the territories of the Member States that have occurred during the reporting period. 2. All requested information shall be provided, when applicable. 3. In the case of an intra-EU transfer, the shipper shall provide the receiver with all the necessary information. ELI: http://data.europa.eu/eli/dec/2025/492/oj 125/136EN OJ L, 14.3.2025 4. If numerical data contain fractions of units, a point shall precede the decimal digits. 5. The following 55 characters may be used: the 26 capital letters A to Z, figures 0 to 9 and the characters ‘plus’, ‘minus’, ‘slash’, ‘asterisk’, ‘space’, ‘equal’, ‘greater than’, ‘less than’, ‘point’, ‘comma’, ‘open bracket’, ‘close bracket’, ‘colon’, ‘dollar’, ‘percent’, ‘quotation mark’, ‘semi-colon’, ‘question mark’ and ‘ampersand’. 6. Under Article 79 of the Treaty, those subject to safeguards requirements shall notify the authorities of the Member State concerned of any communications they make to the Commission pursuant to Article 78 and the first paragraph of Article 79 of the Treaty. 7. Reports shall be prepared in xml format using the template provided by the Commission through a dedicated platform. 8. The reports, duly completed and signed (digitally if possible), shall be forwarded to the European Commission, Euratom Safeguards. 126/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX XIV ANNUAL REPORT ON IMPORTS/RECEIPTS OF CONDITIONED WASTE Header Label/Tag Content Comments # Receiving installation Character (256) Contact details of the receiving installation 1 Receiver MBA Character (4) MBA code receiving installation 2 Report type Character (4) CWIR to be used for this report type 3 Start report Date (DDMMYYYY) Date of first day in reporting period 4 End report Date (DDMMYYYY) Date of last day in reporting period 5 Report date Date (DDMMYYYY) Date on which the report was completed 6 Reporting person Character (64) Name of person responsible for the report 7 Report number Number Unique reference number 8 Entries Label/Tag Content Comments # Line number Number Sequential number, no gaps 9 Date of arrival Date (DDMMYYYY) Date of arrival of the conditioned waste 10 Shipping installation Character (256) Contact details of shipping installation 11 Shipper MBA Character (4) MBA code of shipping installation 12 Conditioned form Character (2) The conditioned form of the waste 13 Plutonium weight Number (24,3) Plutonium weight 14 U235 weight Number (24,3) U235 weight 15 Uranium weight Number (24,3) Uranium weight 16 ELI: http://data.europa.eu/eli/dec/2025/492/oj 127/136EN OJ L, 14.3.2025 Label/Tag Content Comments # Thorium weight Number (24,3) Thorium weight 17 Comment Character (256) Additional comment 18 Explanatory notes: 1. Receiving installation: Name and address of the receiving installation. 2. Receiver MBA: The MBA code of the receiving installation. This code is notified to the installation concerned by the Commission. 3. Report type: CWIR to be used for this report type. 4. Start report: The date of first day in reporting period. 5. End report: The date of last day in reporting period. 6. Report date: Date on which the report was completed. 7. Reporting person: Name of the person responsible for the report. 8. Report number: Sequential number (no gaps) for the annual report on imports/receipts of conditioned waste. 9. Line number: Sequential number starting with 1, no gaps. 10. Date of arrival: The date of arrival of the conditioned waste. 11. Shipping installation: Name and address of shipping installation. 12. Shipper MBA: MBA code of the shipping installation, to be filled in for receipts from installations within the territories of the Member States. 13. Conditioned form: The conditioned form of the waste. Use the material form codes (those related to conditioned waste) as laid out in Annex III (14) to this Regulation. 14. Plutonium weight: The plutonium weight may be based on the weight data recorded at the installation and does not require measurements of the items imported/received. 15. U235 weight: The uranium-235 weight may be based on the weight data recorded at the installation and does not require measurements of the items imported/received. 16. Uranium weight: The total uranium weight may be based on the weight data recorded at the installation and does not require measurements of the items imported/received. 17. Thorium weight: The thorium weight may be based on the weight data recorded at the installation and does not require measurements of the items imported/received. 18. Comment: Optional comment may be added. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS 1. This report shall include all the imports or receipts of conditioned waste from installations within or outside the territories of the Member States that have occurred during the reporting period. 2. All requested information shall be provided, when applicable. 3. If numerical data contain fractions of units, a point shall precede the decimal digits. 128/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 4. The following 55 characters may be used: the 26 capital letters A to Z, figures 0 to 9 and the characters ‘plus’, ‘minus’, ‘slash’, ‘asterisk’, ‘space’, ‘equal’, ‘greater than’, ‘less than’, ‘point’, ‘comma’, ‘open bracket’, ‘close bracket’, ‘colon’, ‘dollar’, ‘percent’, ‘quotation mark’, ‘semi-colon’, ‘question mark’ and ‘ampersand’. 5. Under Article 79 of the Treaty, those subject to safeguards requirements shall notify the authorities of the Member State concerned of any communications they make to the Commission pursuant to Article 78 and the first paragraph of Article 79 of the Treaty. 6. Reports shall be prepared in xml format using the template provided by the Commission through a dedicated platform. 7. The reports, duly completed and signed (digitally if possible), shall be forwarded to the European Commission, Euratom Safeguards. ELI: http://data.europa.eu/eli/dec/2025/492/oj 129/136EN OJ L, 14.3.2025 ANNEX XV ANNUAL REPORT ON CHANGES IN LOCATION OF CONDITIONED WASTE Header Label/Tag Content Comments # MBA Character (4) MBA code of the reporting installation 1 Report type Character (5) CWLOC to be used for this report type 2 Installation Character (256) Name of the reporting installation 3 Report number Number Sequential number, no gaps 4 Start report Date (DDMMYYYY) Date of first day in reporting period 5 End report Date (DDMMYYYY) Date of last day in reporting period 6 Report date Date (DDMMYYYY) Date on which the report was completed 7 Reporting person Character (64) Name of person responsible for the report 8 Entries Label/Tag Content Comments # Line number Number Sequential number, no gaps 9 Waste type Character (2) Waste type prior to conditioning 10 Conditioned form Character (2) The conditioned form of the waste 11 Number of items Number The number of items 12 Plutonium weight Number (24,3) Plutonium weight 13 HEU weight Number (24,3) HEU weight 14 U233 weight Number (24,3) U233 weight 15 Previous location Character (256) The location of the waste before the change in 16 location 130/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 Label/Tag Content Comments # New location Character (256) The location of the waste after the change in 17 location Previous report Number Report to which the current entry refers 18 Previous line Number Line in report indicated under 18 to which the 19 current entry refers Explanatory notes: 1. MBA: The MBA code of the reporting installation. This code is notified to the installation concerned by the Commission. 2. Report type: CWLOC to be used for this report type. 3. Installation: The name of the reporting installation. 4. Report number: Sequential number, no gaps. 5. Start report: Date of first day in reporting period. 6. End report: Date of last day in reporting period. 7. Report date: Date on which the report was completed. 8. Reporting person: Name of the person responsible for the report. 9. Line number: Sequential number starting with 1, no gaps. 10. Waste type: The type of waste before any conditioning took place. Use the material form codes (those related to scrap, solid waste or liquid waste) as laid out in Annex III (14) to this Regulation. 11. Conditioned form: The conditioned form of the waste. Use the material form codes (those related to conditioned waste) as laid out in Annex III (14) to this Regulation. 12. Number of items: The number of items, e.g. glass canisters or cement blocks, to be involved in a single processing campaign or the number of items moved during the year from the same originating (‘previous’) location to the same new location. 13. Plutonium weight: The total weight, in grams, of plutonium contained in all items. The weight may be based on the weight data used in the inventory change reports, e.g. the average weight of nuclear material per item, and does not require a measurement of each item. 14. HEU weight: The total weight, in grams, of high enriched uranium contained in all items. The weight may be based on the weight data used in the inventory change reports, e.g. the average weight of nuclear material per item, and does not require a measurement of each item. 15. U233 weight: The total weight, in grams, of uranium-233 contained in all items. The weight may be based on the weight data used in the inventory change reports, e.g. the average weight of nuclear material per item, and does not require a measurement of each item. 16. Previous location: The location of the waste before the change in location. 17. New location: The location after the change in location 18. Previous report: The ‘previous report’ indicates that the current line adds to or updates information reported earlier in this referred report. ELI: http://data.europa.eu/eli/dec/2025/492/oj 131/136EN OJ L, 14.3.2025 19. Previous line: The ‘previous line’ indicates that the current line adds to or updates information reported earlier in this referred line of the report indicated under point 18. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS 1. This annex shall be used for the annual report to declare any changes in location of wastes covered by point (c) of Article 35 that occurred during the preceding calendar year. A separate entry is required for each change of location during the year. 2. All transfers of conditioned waste shall be grouped by type of waste (prior to conditioning and after conditioning) and by previous location. 3. All requested information shall be provided, when applicable. 4. If numerical data contain fractions of units, a point shall precede the decimal digits. 5. The following 55 characters may be used: the 26 capital letters A to Z, figures 0 to 9 and the characters ‘plus’, ‘minus’, ‘slash’, ‘asterisk’, ‘space’, ‘equal’, ‘greater than’, ‘less than’, ‘point’, ‘comma’, ‘open bracket’, ‘close bracket’, ‘colon’, ‘dollar’, ‘percent’, ‘quotation mark’, ‘semi-colon’, ‘question mark’ and ‘ampersand’. 6. Under Article 79 of the Treaty, those subject to safeguards requirements shall notify the authorities of the Member State concerned of any communications they make to the Commission pursuant to Article 78 and the first paragraph of Article 79 of the Treaty. 7. Reports shall be prepared in xml format using the template provided by the Commission through a dedicated platform. 8. The reports, duly completed and signed (digitally if possible), shall be forwarded to the European Commission, Euratom Safeguards. 132/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 ANNEX XVI REQUEST FOR AUTHORISING AN EXCHANGE OF SAFEGUARD OBLIGATIONS ON NUCLEAR MATERIAL Header Label/Tag Content Comments # Legal entity or name of Character (256) Legal entity or name of installation requesting the 1 installation authorisation for an obligation exchange Reporting MBA Character (4) MBA code of the reporting installation 2 Reporting installation Character (256) Contact details of the reporting installation 3 Corresponding MBA Character (4) MBA code of the corresponding installation 4 Corresponding installation Character (256) Contact details of the corresponding installation 5 Nuclear material weight Number (24,3) Total element weight of all batches involved in the 6 obligation exchange Exchange date Date (DDMMYYYY) Date proposed for the obligation exchange 7 Request date Date (DDMMYYYY) Date of the request for authorisation 8 Report type Character (5) OBLRQ to be used for this report type 9 Reporting person Character (64) Name of person responsible for the report 10 Report number Number Unique reference number 11 Justification Character (256) Justification for the obligation exchange 12 Entries Label/Tag Content Comments # Line number Number Sequential number, no gaps 13 MBA Character (4) MBA where the batch is located (either reporting or 14 corresponding MBA) Batch Character (20) Identification number for the batch involved in the 15 obligation exchange ELI: http://data.europa.eu/eli/dec/2025/492/oj 133/136EN OJ L, 14.3.2025 Label/Tag Content Comments # Container ID Character (20) Identification number for container 16 Element weight Number (24,3) Element weight 17 Fissile weight Number (24,3) Weight of fissile isotope 18 Element category Character (1) Category of the element 19 Chemical composition Character (64) Chemical composition 20 Enrichment Number (3,3) Degree of enrichment 21 Isotopic composition Number (24,3) (for each Plutonium isotopic weights 22 isotope) Material state Character (1) Material state code 23 Material form Character (2) Material form code 24 Number of items Number Number of items 25 Intended use Character (256) Use to which the nuclear material is assigned after 26 the obligation exchange Comment Character (256) Any relevant additional information 27 Explanatory notes: 1. Legal entity or name of installation: The name of the legal entity or the installation requesting the authorisation for the obligation exchange. 2. Reporting MBA: Code of the reporting material balance area. This code is notified to the installation concerned by the Commission. 3. Reporting installation: Name and address of the reporting installation. 4. Corresponding MBA: The code of the corresponding material balance area in the case of intra-EU obligation exchange and, if known, in the case of an obligation exchange with an installation located in a third country. 5. Corresponding installation: Name and address of the corresponding installation. 6. Nuclear material weight: Total element weight of all batches involved in the obligation exchange. 7. Exchange date: The date proposed by the reporting person to perform the obligation exchange. 8. Request date: The date on which the request for authorization is transmitted to the Commission. 134/136 ELI: http://data.europa.eu/eli/dec/2025/492/ojEN OJ L, 14.3.2025 9. Report type: OBLRQ to be used for this report type. 10. Reporting person: Name of the person responsible for the report. 11. Report number: Sequential number (no gaps) for the authorization request. 12. Justification: A detailed justification for the need of the obligation exchange. 13. Line number: Sequential number starting with 1, no gaps. 14. MBA: MBA where the batch is located (either reporting or corresponding MBA), to be provided for each batch involved in the obligation exchange. 15. Batch: Identification number for the batch involved in the obligation exchange. The Commission may accept that the batch identification number is provided after the first request, but prior to an agreed date. An exchange not necessarily needs to be item-by-item. 16. Container ID: Unique identifier for the container. The same container ID may be used for several batches. The Commission may accept that the container ID is provided after the first request, but prior to an agreed date. An exchange not necessarily needs to be item-by-item. 17. Element weight: The element weight shall be given in grams. The information shall be inserted for each batch. 18. Fissile weight: The weight of the fissile isotope(s) (for low enriched uranium and high enriched uranium: weight of isotope U-233 and U-235) shall be given in grams. The information shall be inserted for each batch containing uranium. 19. Element category: The category of nuclear material. Use the category codes as laid out in Annex III (25) to this Regulation. 20. Chemical composition: The chemical composition of the batches involved in the obligation exchange. The chemical composition shall be the same for all batches involved in the exchange. 21. Enrichment: Percent composition of uranium-235. The information shall be inserted for each batch containing uranium. 22. Isotopic composition: The isotopic composition for batches containing plutonium (weight of Pu-238, Pu-239, Pu-240, Pu-241 and Pu-242). 23. Material state: The following codes must be used. State Code Fresh nuclear material F Irradiated nuclear material I Reprocessed nuclear material (only applicable to uranium) P Waste W Irrecoverable material N 24. Material form: The material form of the batch, using material form codes as laid out in Annex III (14) to this Regulation. The material form shall be the same for all batches involved in the exchange. ELI: http://data.europa.eu/eli/dec/2025/492/oj 135/136EN OJ L, 14.3.2025 25. Number of items: The number of items included in the batch. 26. Intended use: The use to which the nuclear material is assigned after the obligation exchange. 27. Comment: Include any additional relevant information here. GENERAL REMARKS CONCERNING THE COMPLETION OF THE REPORTS 1. All requested information shall be provided, when applicable. 2. If numerical data contain fractions of units, a point shall precede the decimal digits. 3. The following 55 characters may be used: the 26 capital letters A to Z, figures 0 to 9 and the characters ‘plus’, ‘minus’, ‘slash’, ‘asterisk’, ‘space’, ‘equal’, ‘greater than’, ‘less than’, ‘point’, ‘comma’, ‘open bracket’, ‘close bracket’, ‘colon’, ‘dollar’, ‘percent’, ‘quotation mark’, ‘semi-colon’, ‘question mark’ and ‘ampersand’. 4. Under Article 79 of the Treaty, those subject to safeguards requirements shall notify the authorities of the Member State concerned of any communications they make to the Commission pursuant to Article 78 and the first paragraph of Article 79 of the Treaty. 5. The reports, duly completed and signed (digitally if possible), shall be forwarded to the European Commission, Euratom Safeguards. 136/136 ELI: http://data.europa.eu/eli/dec/2025/492/oj