40 C.F.R. § 180.339
MCPA; tolerances for residues.
Cite as 40 C.F.R. § 180.339 (2026)
(a) General. Tolerances are established for residues of the herbicide MCPA, 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 to this paragraph (a) is to be determined by measuring only MCPA, 2-(4-chloro-2-methylphenoxy)acetic acid, in or on the commodity. Table 1 to Paragraph ( a ) Commodity Parts per million Alfalfa, forage 0.5 Alfalfa, hay 2.0 Barley, grain 1.0 Barley, hay 40 Barley, straw 25 Cattle, fat 0.1 Cattle, meat 0.1 Cattle, meat byproducts 0.1 Clover, forage 0.05 Clover, hay 0.05 Flax, seed 0.1 Goat, fat 0.1 Goat, meat 0.1 Goat, meat byproducts 0.1 Grain, aspirated fractions 3.0 Grass, forage 300 Grass, hay 20 Hog, fat 0.1 Hog, meat 0.1 Hog, meat byproducts 0.1 Horse, fat 0.1 Horse, meat 0.1 Horse, meat byproducts 0.1 Lespedeza, forage 0.5 Lespedeza, hay 2.0 Milk 0.1 Oat, forage 20 Oat, grain 1.0 Oat, hay 115 Oat, straw 25 Pea, dry 0.1 Pea, field, hay 0.1 Pea, field, vines 0.1 Pea, succulent 0.1 Rye, forage 20 Rye, grain 1.0 Rye, straw 25 Sheep meat 0.1 Sheep meat byproducts 0.1 Sheep, fat 0.1 Tea, dried 0.3 Trefoil, forage 0.5 Trefoil, hay 2.0 Vetch, forage 0.5 Vetch, hay 2.0 Wheat, forage 20 Wheat, grain 1.0 Wheat, hay 115 Wheat, straw 25 Wheatgrass, intermediate, forage 50 Wheatgrass, intermediate, grain 0.2 Wheatgrass, intermediate, hay 50 Wheatgrass, intermediate, straw 50 (b)-(d) [Reserved] [86 FR 71154, Dec. 15, 2021]