Regulations last checked for updates: Nov 25, 2024

Title 40 - Protection of Environment last revised: Nov 21, 2024
§ 180.142 - 2,4-D; tolerances for residues.

(a) General. Tolerances are established for residues of the herbicide, plant regulator, and fungicide 2,4-D, including its metabolites and degradates, in or on the commodities in the table below. Compliance with the tolerance levels is to be determined by measuring residues of 2,4-D (2,4-dichlorophenoxyacetic acid), both free and conjugated, determined as the acid, in or on the following commodities:

Table 1 to Paragraph (a)

Commodity Parts per million
Almond hulls0.1
Asparagus5.0
Barley, bran4.0
Barley, grain2.0
Barley, straw50
Berry, group 130.2
Cattle, fat0.3
Cattle, kidney4.0
Cattle, meat0.3
Cattle, meat byproducts, except kidney0.3
Corn, field, forage6.0
Corn, field, grain0.05
Corn, field, stover50
Corn, pop, grain0.05
Corn, pop, stover50
Corn, sweet, forage6.0
Corn, sweet, kernel plus cob with husks removed0.05
Corn, sweet, stover50
Cotton, gin byproducts1.5
Cotton, undelinted seed0.08
Cranberry0.5
Fish0.1
Fruit, citrus, group 103.0
Fruit, pome, group 110.05
Fruit, stone, group 120.05
Goat, fat0.3
Goat, kidney4.0
Goat, meat0.3
Goat, meat byproducts, except kidney0.3
Grain, aspirated fractions40
Grape0.05
Grass, forage360
Grass, hay300
Hop, dried cones0.2
Horse, fat0.3
Horse, kidney4.0
Horse, meat0.3
Horse, meat byproducts, except kidney0.3
Millet, forage25
Millet, grain2.0
Millet, straw50
Milk0.05
Nut, tree, group 140.2
Oat, forage25
Oat, grain2.0
Oat, straw50
Pistachio0.05
Potato0.4
Rice, grain0.5
Rice, hulls2.0
Rye, bran4.0
Rye, forage25
Rye, grain2.0
Rye, straw50
Sesame, seed0.05
Sheep, fat0.3
Sheep, kidney4.0
Sheep, meat0.3
Sheep, meat byproducts, except kidney0.3
Shellfish1.0
Sorghum, grain, forage0.2
Sorghum, grain, grain0.2
Sorghum, grain, stover0.2
Soybean, forage0.02
Soybean, hay2.0
Soybean, seed0.02
Strawberry0.05
Sugarcane, cane0.05
Sugarcane, molasses0.2
Teff, bran4.0
Teff, forage25.0
Teff, grain2.0
Teff, straw50.0
Vegetable, leaves of root and tuber, group 20.1
Vegetable, root and tuber, except potato, group 10.1
Wheat, bran4.0
Wheat, forage25
Wheat, grain2.0
Wheat, straw50
Wheatgrass, intermediate, bran4
Wheatgrass, intermediate, forage30
Wheatgrass, intermediate, grain2
Wheatgrass, intermediate, straw50

(b) Section 18 emergency exemptions. [Reserved]

(c) Tolerances with regional registrations. Tolerances with regional registration, as defined in § 180.1(l), are established for residues of the herbicide, plant regulator, and fungicide 2,4-D, including its metabolites and degradates, in or on the commodities in the table below. Compliance with the tolerance levels is to be determined by measuring residues of 2,4-D (2,4-dichlorophenoxyacetic acid), both free and conjugated, determined as the acid, in or on the follow commodities:

Commodity Parts per million
Rice, wild, grain0.05

(d) Indirect or inadvertent residues. Tolerances are established for indirect or inadvertent residues of the herbicide, plant regulator, and fungicide 2,4-D, including its metabolites and degradates, in or on the commodities in the table below. Compliance with the tolerances levels is to be determined by measuring residues of 2,4-D (2,4-dichlorophenoxyacetic acid), both free and conjugated, determined as the acid, in or on the following commodities:

Commodity Parts per million
Animal feed, nongrass, group 180.2
Avocado0.05
Dill, seed0.05
Okra0.05
Vegetable, brassica leafy, group 50.4
Vegetable, bulb, group 30.05
Vegetable, cucurbit, group 90.05
Vegetable, foliage of legume, group 70.2
Vegetable, fruiting, group 80.05
Vegetable, leafy, except brassica, group 40.4
Vegetable, legume, group 60.05
[72 FR 52017, Sept. 12, 2007, as amended at 73 FR 53737, Sept. 17, 2008; 74 FR 48411, Sept. 23, 2009; 76 FR 55817, Sept. 9, 2011; 80 FR 72597, Nov. 20, 2015; 82 FR 9529, Feb. 7, 2017; 85 FR 82943, Dec. 21, 2020]
authority: 21 U.S.C. 321(q), 346a and 371
source: 36 FR 22540, Nov. 25, 1971, unless otherwise noted.
cite as: 40 CFR 180.142