Date: 2025-11-20Category: Not ApplicableState: Union GovernmentCountry: Europe
Commission Implementing Regulation (EU) 2025/2345 of 19 November 2025 renewing the approval of dazomet as an active substance for use in biocidal products of product-type 8 in accordance with Regulation (EU) No 528/2012 of the European Parliament and of the Council
Issued by European Commission
· Directorate-General for Health and Food Safety
**Executive Summary**
This Commission Implementing Regulation (EU) 2025/2345, issued on November 19, 2025, renews the approval of dazomet as an active substance for use in product-type 8 biocidal products. This renewal is in accordance with Regulation (EU) No 528/2012 and is subject to specific conditions. The regulation comes into force on the twentieth day following its publication in the Official Journal of the European Union.
**Key Points / Main Content**
* **Renewal of Approval:** Dazomet's approval as an active substance for use in biocidal products of product-type 8 is renewed, subject to conditions outlined in the Annex. The approval is valid until August 31, 2040, provided the minimum purity is 96% weight/weight.
* **Conditions for Biocidal Products:**
* Product assessments must specifically address exposures, risks, and efficacy of uses not previously covered at the Union level.
* Member States or the Commission must specify relevant instructions and precautions on the label of treated articles, as required by Article 58(3) of Regulation (EU) No 528/2012.
* **Requirements for Treated Articles:**
* Starting March 1, 2026, those placing treated articles containing dazomet on the market must ensure the label contains the information specified in Article 58(3) of Regulation (EU) No 528/2012.
**Impact Analysis**
**Biocidal Product Manufacturers:**
* **Impact:** Must comply with the specific conditions for authorization when using dazomet in product-type 8 biocidal products, with heightened scrutiny on exposures, risks, and efficacy of uses.
* **Action Required:** Ensure their product assessments and labels for dazomet-containing products comply with the outlined conditions and Article 58(3) of Regulation (EU) No 528/2012.
**Member States' Competent Authorities/Commission:**
* **Impact:** Required to specify relevant instructions for use and precautions on the label of treated articles within the biocidal product characteristics summary.
* **Action Required:** Update biocidal product characteristics summaries to include specified instructions for use and precautions on the label of treated articles.
**Economic Operators placing Treated Articles on the Market:**
* **Impact:** New labelling requirements for treated articles containing dazomet will come into effect.
* **Action Required:** From March 1, 2026, ensure labels of treated articles treated with or incorporating dazomet contain the necessary information as stipulated by Article 58(3) of Regulation (EU) No 528/2012.
Key Entities Referenced
Regulation (EU) No 528/2012: Regulation of the European Parliament and of the Council concerning the making available on the market and use of biocidal products.
Dazomet: An active substance used in biocidal products of product-type 8 (wood preservatives).
Biocidal Products Committee: Prepares the opinion of the Agency regarding the applications for renewal of approval of active substances.
European Chemicals Agency: The Agency that evaluates the application for renewal of the approval of Dazomet.
Brussels: The location where the regulation was done.
Official Journal EN
of the European Union L series
2025/2345 20.11.2025
COMMISSION IMPLEMENTING REGULATION(EU) 2025/2345
of 19 November 2025
renewing the approval of dazomet as an active substance for use in biocidal products of product-type
8 in accordance with Regulation (EU) No 528/2012 of the European Parliament and of the Council
(Text with EEA relevance)
THE EUROPEAN COMMISSION,
Having regard to the Treaty on the Functioning of the European Union,
Having regard to Regulation (EU) No 528/2012 of the European Parliament and of the Council of 22 May 2012 concerning
the making available on the market and use of biocidal products(1), and in particular Article 14(4), point (a), thereof,
Whereas:
(1) Dazomet was included in Annex I to Directive 98/8/EC of the European Parliament and of the Council(2)as an active
substance for use in biocidal products of product-type 8 (wood preservatives). Pursuant to Article 86 of Regulation
(EU) No 528/2012, it was therefore considered approved under that Regulation subject to the requirements set out
in Annex I to Directive 98/8/EC. That inclusion was to expire on 31 July 2022.
(2) On 26 January 2021, an application was submitted in accordance with Article 13(1) of Regulation (EU)
No 528/2012 for the renewal of the approval of dazomet for use in biocidal products of product-type 8 (‘the
application’). The application was evaluated by the competent authority of Belgium (‘the evaluating competent
authority’).
(3) On 14 June 2024, the evaluating competent authority submitted a recommendation on the renewal of the approval
of dazomet to the European Chemicals Agency (‘the Agency’).
(4) In accordance with Article 75(1), second subparagraph, point (a), of Regulation (EU) No 528/2012, the Biocidal
Products Committee prepares the opinion of the Agency regarding the applications for renewal of approval of active
substances. The Biocidal Products Committee adopted the opinion of the Agency on 25 February 2025(3), having
regard to the conclusions of the evaluating competent authority.
(5) In its opinion, the Agency concluded that biocidal products of product-type 8 containing dazomet may be expected
to still satisfy the criteria laid down in Article 19(1), point (b), of Regulation (EU) No 528/2012, provided that
certain conditions concerning their use are complied with. Therefore, the conditions for renewal set out in
Article 12(1), read in conjunction with Article 4(1), of Regulation (EU) No 528/2012 are considered satisfied.
(6) It is therefore appropriate to renew the approval of dazomet for use in biocidal products of product-type 8, subject to
compliance with certain conditions, including a condition for placing on the market of treated articles treated with or
incorporating dazomet in line with Article 58(2) and (3) of Regulation (EU) No 528/2012.
(7) A period of transition should be set for new requirements concerning the placing on the market of treated articles
treated with or incorporating dazomet in order to allow sufficient time for economic operators to adapt.
(8) The measures provided for in this Regulation are in accordance with the opinion of the Standing Committee on
Biocidal Products,
(1) OJ L 167, 27.6.2012, p. 1, ELI: http://data.europa.eu/eli/reg/2012/528/oj.
(2) Directive 98/8/EC of the European Parliament and of the Council of 16 February 1998 concerning the placing of biocidal products on
the market (OJ L 123, 24.4.1998, p. 1, ELI: http://data.europa.eu/eli/dir/1998/8/oj).
(3) Biocidal Products Committee (BPC), Opinion on the application for renewal of the approval of the active substance: Dazomet, Product
type: 8, ECHA/BPC/458/2025, adopted on 25 February 2025.
ELI: http://data.europa.eu/eli/reg_impl/2025/2345/oj 1/3EN
OJ L, 20.11.2025
HAS ADOPTED THIS REGULATION:
Article 1
The approval of dazomet as an active substance for use in biocidal products of product-type 8 is renewed, subject to the
conditions set out in the Annex.
Article 2
This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the
European Union.
This Regulation shall be binding in its entirety and directly applicable in all Member States.
Done at Brussels, 19 November 2025.
For the Commission
The President
Ursula VON DER LEYEN
2/3 ELI: http://data.europa.eu/eli/reg_impl/2025/2345/ojANNEX
IUPAC Name Minimum degree of purity of the Expiry date of Product
Common Name Specific conditions
Identification Numbers active substance(1) approval type
Dazomet Tetrahydro-3,5-dimethyl- 96 % weight/weight 31 August 8 1. The authorisation of biocidal products containing dazomet as an
2H-1,3,5-thiadiazine- 2040 active substance is subject to the following conditions:
2-thione
(a) the product assessment shall pay particular attention to the
EC No: 208-576-7 exposures, the risks and the efficacy linked to any uses covered
by an application for authorisation, but not addressed in the
CAS No: 533-74-4
Union level assessment of the active substance;
(b) Member States’ competent authorities or, in the case of a Union
authorisation, the Commission, shall specify in the summary of
the biocidal product characteristics the relevant instructions for
use and precautions to be indicated on the label of the treated
articles under Article 58(3), second subparagraph, point (e), of
Regulation (EU) No 528/2012.
2. The placing on the market of treated articles is subject to the
following condition: as from 1 March 2026, the person responsible
for the placing on the market of a treated article treated with or
incorporating dazomet shall ensure that the label of that treated
article provides the information listed in Article 58(3), second
subparagraph, of Regulation (EU) No 528/2012.
(1) The purity indicated in this column was the minimum degree of purity of the active substance evaluated. The active substance in the product made available on the market may be of equal or different purity
if it has been proven to be technically equivalent to the evaluated active substance.
ELI:
http://data.europa.eu/eli/reg_impl/2025/2345/oj
3/3
OJ
L,
20.11.2025
EN