Trinexapac-ethyl; tolerances for residues.

(a) General. Tolerances are established for residues of the plant growth regulator, trinexapac-ethyl, including its metabolites and degradates, in or on the commodities in table 1 to this paragraph (a). Compliance with the tolerance levels specified in table 1 is to be determined by measuring only the free and conjugated forms of both trinexapac-ethyl, ethyl 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylate and trinexapac, 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylic acid, calculated as the stoichiometric equivalent of trinexapac-ethyl, in or on the commodity. Table 1 to Paragraph ( a ) Commodity Parts per million Barley, bran 2.5 Barley, grain 2.0 Barley, hay 0.8 Barley, straw 0.4 Cattle, fat 0.03 Cattle, meat 0.03 Cattle, meat byproducts 0.1 Egg 0.01 Goat, fat 0.03 Goat, meat 0.03 Goat, meat byproducts 0.1 Grass, forage 1.5 Grass, hay 4.0 Grass, seed screenings 40.0 Grass, straw 10.0 Hog, fat 0.02 Hog, meat 0.02 Hog, meat by-products 0.1 Horse, fat 0.02 Horse, meat 0.03 Horse, meat byproducts 0.04 Milk 0.01 Oat, forage 1.0 Oat, grain 4.0 Oat, hay 1.5 Oat, straw 0.9 Poppy, seed 1 8 Poultry, fat 0.01 Poultry, meat 0.01 Poultry, meat byproducts 0.1 Rice, bran 1.5 Rice, grain 0.4 Rice, straw 0.07 Rice, wild, grain 0.4 Rye, bran 6.0 Rye, grain 4.0 Rye, hay 1.5 Rye, straw 0.9 Sheep, fat 0.03 Sheep, meat 0.03 Sheep, meat byproducts 0.1 Sugarcane, cane 1.5 Sugarcane, molasses 5 Wheat, bran 6.0 Wheat, forage 1.0 Wheat, grain 4.0 Wheat, hay 1.5 Wheat, middlings 10.5 Wheat, straw 0.9 1 There are no U.S. registrations for Poppy, seed as of March 15, 2018. (b) [Reserved] (c) Tolerances with regional registrations. Tolerances with regional registrations, as defined in § 180.1, are established for residues of trinexapac-ethyl, including its metabolites and degradates, in or on the commodities in table 2 to this paragraph (c). Compliance with the tolerance levels specified in table 2 is to be determined by measuring only the free and conjugated forms of both trinexapac-ethyl, ethyl 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylate and trinexapac, 4-(cyclopropylhydroxymethylene)-3,5-dioxocyclohexanecarboxylic acid, calculated as the stoichiometric equivalent of trinexapac-ethyl, in or on the commodity. Table 2 to Paragraph ( c ) Commodity Parts per million Clover, forage 8 Clover, hay 15 (d) [Reserved] [88 FR 18434, Mar. 29, 2023]