Amendments to the Enforcement Ordinance of the Standards of Feed and Feed Additives (Amendment of maximum residue limits (MRLs) for Deltamethrin and Tralomethrin)

The proposed maximum residue limits (MRLs) for Deltamethrin and Tralomethrin notified in G/SPS/N/JPN/1350 (dated 1 July 2025) were adopted.These amendments have been published in "KAMPO" (6 January 2026) (Official Government Gazette available in Japanese only).The date of entry into force: 6 January 2026 (oats, barley, wheat, maize, milo and rye), 6 January 2027 (hay).Commodity (for feed)       Proposed MRL (mg/kg)   Current MRL (mg/kg)Oats                                       2                                            1Barley                                    2                                            1Wheat                                   2                                            1Maize                                    2                                            1Milo                                       2                                            1Rye                                        2                                            1Hay                                        1                                            5Note:- Residue definition for enforcement: Sum of deltamethrin (including deltamethrin converted from tralomethrin), and metabolites CR[(R)-α-cyano-3-phenoxybenzyl=(1R,3R)-3-(dibromovinyl)-2,2-dimethylcyclopropanecarboxylate] and CT[(S)-α-cyano-3-phenoxybenzyl=(1S,3S)-3-(dibromovinyl)-2,2-dimethylcyclopropanecarboxylate] converted to deltamethrin.- Hay includes hay and fodder (dry), straw, forage (green) and silage. The MRL is set as 90% dry matter base.