(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 authorisation.

(2)

In accordance with Article 7 of Regulation (EC) No 1831/2003, an application was submitted for the authorisation of L-cystine produced with Escherichia coli DSM 34232. That application was accompanied by the particulars and documents required under Article 7(3) of Regulation (EC) No 1831/2003.

(3)

That application concerns the authorisation of L-cystine produced with Escherichia coli DSM 34232 as a feed additive 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’; and in the additive category ‘sensory additives’ and in the functional group ‘flavouring compounds’. The applicant requested the additive to be authorised for use also in water for drinking. However, Regulation (EC) No 1831/2003 does not allow the authorisation of flavouring compounds for use in water for drinking. Therefore, the use of this additive in water for drinking should not be allowed. In addition, the applicant later withdrew the application for the authorisation L-cystine produced with Escherichia coli DSM 34232 in the category ‘nutritional additives’ and the functional group ‘amino acids, their salts and analogues’.

(4)

The European Food Safety Authority (‘the Authority’) concluded in its opinion of 17 September 2025 (2) that, under the proposed conditions of use, L-cystine produced with Escherichia coli DSM 34232 is safe for all animal species as well as for consumers and the environment. The Authority also concluded that L-cystine produced with Escherichia coli DSM 34232 is not considered a skin and eye irritant, nor a skin sensitiser. The Authority further concluded that, as L-cystine produced with Escherichia coli DSM 34232 is used in food as flavouring compound, it is expected that it can provide a similar function in feed and no further demonstration of efficacy is necessary. It did not consider that there is a need for specific requirements of post-market monitoring. The Authority 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-cystine produced with Escherichia coli DSM 34232 satisfies the conditions provided for in Article 5 of Regulation (EC) No 1831/2003. Accordingly, the use of that substance should be authorised for all animal species. 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 Commission considers that safety reasons do not require the setting of maximum contents for L-cystine produced with Escherichia coli DSM 34232. In order to allow better control, the recommended maximum content should be indicated on the label of the additive. Where the recommended maximum content is exceeded, certain information should be indicated on the label of the premixtures concerned.

(7)

The measures provided for in this Regulation are in accordance with the opinion of the Standing Committee on Plants, Animals, Food and Feed,