(a) General.

(1) Tolerances are established for residues of the herbicide MCPA ((4-chloro-2-methylphenoxy)acetic acid), both free and conjugated, resulting from the direct application of MCPA or its sodium or dimethylamine salts, or its 2-ethylhexyl ester in or on the following food commodities:

Open Table
Commodity Parts per million
Alfalfa, forage 0.5
Alfalfa, hay 2.0
Barley, grain 1.0
Barley, hay 40
Barley, straw 25
Clover, forage 0.5
Clover, hay 2.0
Flax, seed 0.1
Grain, aspirated fractions 3.0
Grass, forage 300
Grass, hay 20
Lespedeza, forage 0.5
Lespedeza, hay 2.0
Oat, forage 20
Oat, grain 1.0
Oat, hay 115
Oat, straw 25
Pea, dry 0.1
Pea, field, hay 0.1
Pea, succulent 0.1
Pea, field, vines 0.1
Rye, forage 20
Rye, grain 1.0
Rye, straw 25
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

(2) Tolerances are established for residues of the herbicide MCPA ((4-chloro-2-methylphenoxy)acetic acid) resulting from the direct application of MCPA or its sodium or dimethylamine salts, or its 2-ethylhexyl ester in or on the following food commodities:

Open Table
Commodity Parts per million
Cattle, fat 0.1
Cattle, meat 0.1
Cattle, meat byproducts 0.1
Goat, fat 0.1
Goat, meat 0.1
Goat, meat byproducts 0.1
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
Milk 0.1
Sheep, fat 0.1
Sheep meat 0.1
Sheep meat byproducts 0.1

(b) Section 18 emergency exemptions. [Reserved]

(c) Tolerances with regional registrations. [Reserved]

(d) Indirect or inadvertent residues. [Reserved]

[72 FR 28888, May 23, 2007, as amended at 73 FR 5109, Jan. 29, 2008]


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