Date: 2026-01-15Category: Not ApplicableState: Union GovernmentCountry: Europe
Commission Implementing Regulation (EU) 2026/90 of 14 January 2026 concerning the authorisation of L-arginine produced with Corynebacterium glutamicum KCCM 80393 as a feed additive for all animal species
Issued by European Commission
· Directorate-General for Health and Food Safety
**Executive Summary**
This Commission Implementing Regulation (EU) 2026/90, dated 14 January 2026, authorises L-arginine produced with *Corynebacterium glutamicum* KCCM 80393 as a feed additive for all animal species. It classifies L-arginine as a nutritional additive within the amino acids, their salts and analogues functional group. The authorisation is valid until 4 February 2036.
**Key Points / Main Content**
* **Authorisation:**
* L-arginine produced with *Corynebacterium glutamicum* KCCM 80393 is authorised as a feed additive for all animal species.
* It belongs to the additive category ‘nutritional additives’ and the functional group ‘amino acids, their salts, and analogues'.
* The authorisation is valid until 4 February 2036.
* **Specifications:**
* L-arginine content must be ≥ 98.5% on a dry matter basis.
* The additive is in solid form.
* **Usage and Labeling:**
* Directions for use, storage conditions, stability to heat treatment, and stability in water for drinking must be indicated on the additive and premixture labels.
* The additive can be used via drinking water.
* If used for ruminants, L-arginine must be rumen protected.
* Moisture content must be indicated on the additive label.
* Labels must state: "The supplementation with L-arginine, in particular via water for drinking, shall take into account all essential and conditionally essential amino acids in order to avoid nutritional imbalances."
* **Safety and Procedures:**
* Feed business operators must establish operational procedures and organizational measures to address potential risks resulting from the use of the additive.
* If risks cannot be eliminated, the additive and premixtures shall be used with personal skin, eye, and breathing protective equipment.
* **Analytical Methods:**
* Specified analytical methods are used for identification and determination of L-arginine in the feed additive, premixtures, compound feed, and water for drinking.
**Impact Analysis**
**Feed Business Operators**
* **Impact:** Responsible for ensuring the correct usage and labeling of the L-arginine additive and premixtures. They also need to ensure it is rumen-protected when fed to ruminants, establish operational safety procedures, and ensure that labels contain the required information about avoiding nutritional imbalances.
* **Action Required:** Follow all labeling requirements, directions for use, and establish appropriate procedures and safety measures as outlined in the regulation. Ensure that L-arginine is rumen protected when fed to ruminants.
**Users of the Additive and Premixtures**
* **Impact:** Affected by the need to use personal protective equipment if risks from handling the additive cannot be eliminated through operational procedures and measures. They must also be aware of the potential for nutritional imbalances when supplementing with L-arginine and ensure adequate intake of all essential amino acids.
* **Action Required:** Comply with established safety measures, including using personal protective equipment if necessary. Ensure that animals receive a balanced diet with all essential amino acids when supplementing with L-arginine.
**Ruminant Animal Feeders**
* **Impact:** Are impacted because the supplemental L-arginine requires protection against degradation in the rumen.
* **Action Required:** Ensure that L-arginine is rumen protected.
Key Entities Referenced
Regulation (EC) No 1831/2003: Regulation of the European Parliament and of the Council on additives for use in animal nutrition, providing the framework for the authorisation of feed additives.
Corynebacterium glutamicum KCCM 80393: The specific strain of bacteria used to produce the L-arginine feed additive.
L-arginine: Amino acid feed additive that is the subject of the authorization.
European Food Safety Authority: The Authority assessed the safety and efficacy of L-arginine as a feed additive.
Regulation (EC) No 183/2005: Regulation of the European Parliament and of the Council laying down requirements for feed hygiene.
Official Journal EN
of the European Union L series
2026/90 15.1.2026
COMMISSION IMPLEMENTING REGULATION(EU) 2026/90
of 14 January 2026
concerning the authorisation of L-arginine produced with Corynebacterium glutamicumKCCM 80393
as a feed additive for all animal species
(Text with EEA relevance)
THE EUROPEAN COMMISSION,
Having regard to the Treaty on the Functioning of the European Union,
Having regard to Regulation (EC) No 1831/2003 of the European Parliament and of the Council of 22 September 2003 on
additives for use in animal nutrition(1), and in particular Article 9(2) thereof,
Whereas:
(1) Regulation (EC) No 1831/2003 provides for the authorisation of additives for use in animal nutrition and for the
grounds and procedures for granting such an authorisation.
(2) In accordance with Article 7 of Regulation (EC) No 1831/2003, an application was submitted for the authorisation of
L-arginine produced with Corynebacterium glutamicum KCCM 80393. That application was accompanied by the
particulars and documents required under Article 7(3) of Regulation (EC) No 1831/2003.
(3) The application concerns the authorisation of L-arginine produced with Corynebacterium glutamicumKCCM 80393 as
a feed additive for use in feed and in water for drinking for all animal species, requesting that additive to be classified
in the additive category ‘nutritional additives’ and in the functional group ‘amino acids, their salts and analogues’.
(4) The European Food Safety Authority (‘the Authority’) concluded in its opinion of 18 March 2025(2)that L-arginine
produced with Corynebacterium glutamicum KCCM 80393 is safe for the target species when supplemented in
appropriate amounts to the diet according to their nutritional needs. However, due to the risk of nutritional
imbalances and hygienic reasons, the Authority has concerns on the of use l-arginine in water for drinking. The
Authority concluded that the use of L-arginine produced with Corynebacterium glutamicum KCCM 80393 in animal
nutrition is safe for the consumers and the environment. In the absence of data, it could not conclude on the
potential of the substance to be an irritant to skin and/or eyes, or to be a dermal or respiratory sensitiser. The
Authority further concluded that the substance is regarded as an efficacious source of the amino acid L-arginine for
non-ruminant nutrition. For the supplemental L-arginine to be as efficacious in ruminants as in non-ruminant
species, it requires protection against degradation in the rumen. The Authority did not consider that there is a need
for specific requirements of post-market monitoring. It also verified the report on the method of analysis of the feed
additive in feed submitted by the Reference Laboratory set up by Regulation (EC) No 1831/2003.
(5) In view of the above, the Commission considers that L-arginine produced with Corynebacterium glutamicum KCCM
80393 satisfies the conditions provided for in Article 5 of Regulation (EC) No 1831/2003. Accordingly, the use of
that substance as a feed additive should be authorised. The Commission considers that the safe use of this amino
acid in water for drinking, with regard to possible hygiene risks, is to be considered within the scope of Regulation
(1) OJ L 268, 18.10.2003, p. 29, ELI: http://data.europa.eu/eli/reg/2003/1831/oj.
(2) EFSA Journal, 23(5), e9453. https://doi.org/10.2903/j.efsa.2025.9453.
ELI: http://data.europa.eu/eli/reg_impl/2026/90/oj 1/4EN
OJ L, 15.1.2026
(EC) No 183/2005 laying down requirements for feed hygiene(3). When fed to ruminants, L-arginine produced with
Corynebacterium glutamicumKCCM 80393 should be protected against degradation in the rumen. It is appropriate to
alert the user to take into account the dietary supply with all the essential and conditionally essential amino acids, in
particular in the case of supplementation with L-arginine via water for drinking. In addition, the Commission
considers that appropriate protective measures should be taken to prevent adverse effects on the health of the users
of the additive.
(6) The measures provided for in this Regulation are in accordance with the opinion of the Standing Committee on
Plants, Animals, Food and Feed,
HAS ADOPTED THIS REGULATION:
Article 1
Authorisation
The substance specified in the Annex, belonging to the additive category ‘nutritional additives’ and to the functional group
‘amino acids, their salts and analogues’, is authorised as an additive in animal nutrition, subject to the conditions laid down
in that Annex.
Article 2
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.
This Regulation shall be binding in its entirety and directly applicable in all Member States.
Done at Brussels, 14 January 2026.
For the Commission
The President
Ursula VON DER LEYEN
(3) Regulation (EC) No 183/2005 of the European Parliament and of the Council of 12 January 2005 laying down requirements for feed
hygiene (OJ L 35, 8.2.2005, p. 1, ELI: https://data.europa.eu/eli/reg/2005/183/oj).
2/4 ELI: http://data.europa.eu/eli/reg_impl/2026/90/ojANNEX
Identifica Minimum Maximum
tion Species or content content End of period
Composition, chemical formula, Maximum
number of Name of the additive category Other provisions of
description, analytical method age
the feed of animal mg/kg of complete feed with authorisation
additive 12 % moisture content
Category: nutritional additives. Functional group: amino acids, their salts and analogues
3c366 L-arginine Additive composition All - - - 1. In the directions for use of 4 February
L-arginine ≥ 98,5 % (on a dry matter animal the additive and premixtures, 2036
basis) species the storage conditions, the
Solid form stability to heat treatment
——————————— and the stability in water for
Characterisation of the active substance drinking shall be indicated.
L-arginine produced with 2. The additive may be used via
Corynebacterium glutamicumKCCM water for drinking.
80393 3. Feed business operators shall
IUPAC name: (S)-2-amino- ensure that L-arginine is
5-guanidinopentanoic acid rumen protected, when fed
Chemical formula: C H N O to ruminants.
6 14 4 2
CAS number: 74–79-3 4. The moisture content shall
——————————— be indicated on the label of
Analytical method(1) the additive.
For the identification of L-arginine in 5. The label of the additive and
the feed additive: premixtures shall indicate
— Food Chemical Codex ‘L-arginine the following: ‘The
monograph’ supplementation with
For the determination of arginine in L-arginine, in particular via
the feed additive: water for drinking, shall take
— Ion-exchange chromatography into account all essential and
coupled to post-column conditionally essential
derivatisation and optical amino acids in order to avoid
detection (IEC-VIS/FLD or nutritional imbalances.’
IEC-VIS) 6. For users of the additive and
For the determination of arginine in premixtures, feed business
premixtures: operators shall establish
— Ion-exchange chromatography operational procedures and
coupled to post-column organisational measures to
derivatisation and optical address potential risks
ELI:
http://data.europa.eu/eli/reg_impl/2026/90/oj
3/4
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L,
15.1.2026
ENIdentifica Minimum Maximum
tion Species or content content End of period
Composition, chemical formula, Maximum
number of Name of the additive category Other provisions of
description, analytical method age
the feed of animal mg/kg of complete feed with authorisation
additive 12 % moisture content
detection (IEC-VIS) – Commission resulting from its use. Where
Regulation (EC) those risks cannot be
No 152/2009(2), or eliminated by such
— Ion-exchange chromatography procedures and measures,
coupled to post-column the additive and premixtures
derivatisation and optical shall be used with personal
detection (IEC-VIS/FLD) skin, eye and breathing
For the determination of arginine in protective equipment.
compound feed:
— Ion-exchange chromatography
coupled to post-column
derivatisation and optical
detection (IEC-VIS) –Regulation
(EC) No 152/2009
For the determination of arginine in
water for drinking:
— Ion-exchange chromatography
coupled to post-column
derivatisation and optical
detection (IEC-VIS)
(1) Details of the analytical methods are available at the following address of the Reference Laboratory: https://joint-research-centre.ec.europa.eu/eurl-fa-eurl-feed-additives/eurl-fa-authorisation/eurl-fa-
evaluation-reports_en.
(2) Commission Regulation (EC) No 152/2009 of 27 January 2009 laying down the methods of sampling and analysis for the official control of feed (OJ L 54, 26.2.2009, p. 1, ELI: http://data.europa.eu/eli/reg/
2009/152/oj).
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EN
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15.1.2026