Commission Implementing Regulation (EU) 2026/321 of 12 February 2026 amending Implementing Regulations (EU) 2017/1506 and (EU) No 540/2011 as regards the conditions of approval of the active substance maleic hydrazide

Amendment to Implementing Regulation (EU) 2017/1506

Article 1

Annex I to Implementing Regulation (EU) 2017/1506 is amended in accordance with Annex I to this Regulation.

Amendment to Implementing Regulation (EU) No 540/2011

Article 2

The Annex to Implementing Regulation (EU) No 540/2011 is amended in accordance with Annex II to this Regulation.

Entry into force

Article 3

This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union .

ANNEX ISupplementary provisions

ANNEX I Annex I to Implementing Regulation (EU) 2017/1506 is replaced by the following: ‘ANNEX I Common Name, Identification Numbers IUPAC Name Purity  ( 1 ) Date of approval Expiration of approval Specific provisions Maleic hydrazide CAS No 123-33-1 CIPAC No 310 6-hydroxy-2H-pyridazin-3-one ≥ 979 g/kg The impurity hydrazine shall not exceed 0,028 mg/kg in the technical material. 1 November 2017 31 October 2032 For the implementation of the uniform principles, as referred to in Article 29(6) of Regulation (EC) No 1107/2009, the conclusions of the renewal report on maleic hydrazide, and in particular Appendices I and II thereto, as well as its addendum, shall be taken into account. In this overall assessment Member States shall pay particular attention to: — the protection of consumers; — the operator and worker safety; the conditions of the use shall include the application of adequate personal protective equipment. Conditions of use shall include risk mitigation measures, where appropriate. ’ ( 1 )   Further details on identity and specification of active substance are provided in the renewal report.

ANNEX IISupplementary provisions

ANNEX II Row 117, maleic hydrazide, in Part B of the Annex to Implementing Regulation (EU) No 540/2011 is replaced by the following: No Common Name, Identification Numbers IUPAC Name Purity  ( 1 ) Date of approval Expiration of approval Specific provisions ‘117 Maleic hydrazide CAS No 123-33-1 CIPAC No 310 6-hydroxy-2H-pyridazin-3-one ≥ 979 g/kg The impurity hydrazine shall not exceed 0,028 mg/kg in the technical material. 1 November 2017 31 October 2032 For the implementation of the uniform principles, as referred to in Article 29(6) of Regulation (EC) No 1107/2009, the conclusions of the renewal report on maleic hydrazide, and in particular Appendices I and II thereto, as well as its addendum, shall be taken into account. In this overall assessment Member States shall pay particular attention to: — the protection of consumers; — the operator and worker safety; the conditions of the use shall include the application of adequate personal protective equipment. Conditions of use shall include risk mitigation measures, where appropriate.’ ( 1 )   Further details on identity and specification of active substance are provided in the renewal report.