Regulations last checked for updates: Feb 12, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
§ 180.378 - Permethrin; tolerances for residues.

(a) General. Tolerances are established for residues of permethrin, including its metabolites and degradates, in or on the commodities in the table below. Compliance with the tolerance levels specified below is to be determined by measuring only permethrin [(3-phenoxyphenyl)methyl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate], as the sum of its cis- and trans- isomers in or on the commodity.

Table 1 to Paragraph (a)

Commodity Parts per million
Alfalfa, forage20
Alfalfa, hay45
Almond0.05
Almond, hulls20
Artichoke, globe5.0
Arugula 50
Asparagus2.0
Avocado1.0
Broccoli2.0
Brussels sprouts1.0
Cabbage6.0
Cattle, fat1.5
Cattle, meat0.10
Cattle, meat byproducts0.10
Cauliflower0.5
Celtuce5
Cherry subgroup 12-12A4
Corn, field, forage50
Corn, field, stover30
Corn, pop, stover30
Corn, sweet, forage50
Corn, sweet, stover30
Cress, garden 50
Cress, upland 50
Dragon fruit 3
Egg0.10
Eggplant0.50
Fennel, Florence, fresh leaves and stalks5
Field corn subgroup 15-22C 0.05
Fruit, pome, group 110.05
Garlic, bulb0.10
Grain, aspirated fractions0.50
Goat, fat1.5
Goat, meat0.10
Goat, meat byproducts0.10
Hazelnut0.05
Hog, fat0.05
Hog, meat0.05
Hog, meat byproducts0.05
Horse, fat1.5
Horse, meat0.10
Horse, meat byproducts0.10
Horseradish0.50
Kiwifruit2.0
Leaf petiole vegetable subgroup 22B5
Leafy greens subgroup 4-16A 50
Milk, fat (reflecting 0.88 ppm in whole milk)3.0
Mushroom5.0
Onion, bulb0.10
Peach subgroup 12-12B2
Pepper, bell0.50
Pistachio0.10
Poultry, fat0.15
Poultry, meat0.05
Poultry, meat byproducts0.05
Sheep, fat1.5
Sheep, meat0.10
Sheep, meat byproducts0.10
Soybean, seed0.05
Sweet corn subgroup 15-22D 0.1
Swiss chard5
Tea, plucked leaves 120
Tomato2.0
Vegetable, cucurbit, group 91.5
Vegetable, tuberous and corm, subgroup 1C0.05
Walnut0.05
Watercress5.0

1 There are no United States registrations for use of permethrin on tea, plucked leaves as of July 28, 2020.

(b) Section 18 emergency exemptions. [Reserved]

(c) Tolerances with regional registrations. Tolerances with regional registrations, as defined in § 180.1(l), are established for residues of permethrin, including its metabolites and degradates, in or on the commodities in the table below. Compliance with the tolerance levels specified below is to be determined by measuring only permethrin [(3-phenoxyphenyl)methyl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate], as the sum of its cis- and trans- isomers in or on the commodity.

Commodity Parts per million
Collards15
Fruit, small, vine climbing, except fuzzy kiwifruit, subgroup 13-07F2
Grass, forage15
Grass, hay15
Papaya1.0
Turnip, tops10
Turnip, roots0.20

(d) Indirect or inadvertent residues. [Reserved]

[72 FR 52019, Sept. 12, 2007, as amended at 85 FR 45335, July 28, 2020; 91 FR 1400, Jan. 14, 2026]
authority: 21 U.S.C. 321(q), 346a and 371
source: 36 FR 22540, Nov. 25, 1971, unless otherwise noted.
cite as: 40 CFR 180.378