40 CFR 180.418 - Cypermethrin and isomers alpha-cypermethrin and zeta-cypermethrin; tolerances for residues.

Regulations last checked for updates: Feb 12, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026

View all text of Subpart C [§ 180.101 - § 180.730]

§ 180.418 - Cypermethrin and isomers alpha-cypermethrin and zeta-cypermethrin; tolerances for residues.

(a) General. (1) Tolerances are established for residues of cypermethrin, (±)alpha cyano-(3-phenoxyphenyl)methyl (±)cis,trans-3(2,2-dichloroethenyl-2,2-dimethylcyclopropanecarboxylate, including its metabolites and degradates, in or on the commodities in table 1 to paragraph (a). Compliance with the tolerance levels specified in the following table is to be determined by measuring only total cypermethrin, cyano(3-phenoxyphenyl)methyl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane carboxylate, in or on the commodity.

Table 1 to Paragraph (a)

Commodity	Parts per million
Allspice ¹	0.5
Angelica, seed ¹	0.2
Anise pepper ¹	0.5
Asafoetida ¹	0.2
Ashwagandha fruit ¹	0.5
Batavia-casia, fruit ¹	0.5
Belleric myrobalan ¹	0.5
Brassica, head and stem, subgroup 5A	2.0
Brassica, leafy greens, subgroup 5B	14.0
Calamus-root ¹	0.2
Caper buds ¹	0.5
Cardamom, black ¹	0.5
Cardamom, Ethiopian ¹	0.5
Cardamom, green ¹	0.5
Cardamom, Nepal ¹	0.5
Cardamom-amomum ¹	0.5
Cassia, fruit ¹	0.5
Cassia, Chinese, fruit ¹	0.5
Cattle, fat	1.0
Cattle, meat	0.2
Cattle, meat byproducts	0.05
Chaste tree, Chinese, roots ¹	0.2
Chinese hawthorne ¹	0.5
Chinese-pepper ¹	0.5
Cinnamon, fruit ¹	0.5
Cinnamon, Saigon, fruit ¹	0.5
Coptis ¹	0.2
Coriander, fruit ¹	0.5
Coriander, seed ¹	0.2
Cotton, gin byproducts	11.0
Cotton, undelinted seed	0.5
Cumin, black ¹	0.5
Dorrigo pepper, berry ¹	0.5
Dorrigo pepper, leaf ¹	0.5
Durian ¹	1
Egg	0.05
Eucalyptus ¹	0.5
Fingerroot ¹	0.2
Gamboge ¹	0.5
Grains of Selim ¹	0.5
Goat, fat	1.0
Goat, meat	0.2
Goat, meat byproducts	0.05
Hog, fat	0.1
Hog, meat	0.05
Horse, fat	1.0
Horse, meat	0.2
Horse, meat byproducts	0.05
Jalap ¹	0.2
Juniper, berry ¹	0.5
Lettuce, head	4.0
Lovage, root ¹	0.2
Lovage, seed ¹	0.2
Milk, fat (reflecting 0.10 in whole milk)	2.5
Miracle fruit ¹	0.5
Onion, bulb	0.1
Onion, green	6.0
Pecan	0.05
Pepper, black ¹	0.5
Pepper, Indian long ¹	0.5
Pepper, Javanese, long ¹	0.5
Pepper, pink ¹	0.5
Pepper, Sichuan ¹	0.5
Pepper, white ¹	0.5
Pepperbush berry ¹	0.5
Pepperbush leaf ¹	0.5
Peppercorn, green ¹	0.5
Peppertree ¹	0.5
Peppertree, Peruvian ¹	0.5
Poultry, fat	0.05
Poultry, meat	0.05
Saunders, red ¹	0.5
Sheep, fat	1.0
Sheep, meat	0.2
Sheep, meat byproducts	0.05
Sumac, fragrant ¹	0.5
Sumac, smooth, leaf ¹	0.5
Tamarind, seed ¹	0.5
Tasmanian, pepper, berry ¹	0.5
Tea, dried ¹	15
Tsaoko ¹	0.5
Vanilla ¹	0.5
Yellow gentian, roots ¹	0.2

¹ There are no U.S. registrations as of July 17, 2025.

(2) Tolerances are established for residues of zeta-cypermethrin, (S-cyano(3-phenoxyphenyl) methyl (±))(cis-trans 3-(2,2-dichloroethenyl)-2,2 dimethylcyclopropanecarboxylate), including its metabolites and degradates, in or on the commodities in the following table. Compliance with the tolerance levels specified in the following table is to be determined by measuring only total cypermethrin, cyano(3-phenoxyphenyl)methyl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane carboxylate, in or on the commodity.

Table 2 to Paragraph (a)(2)

Commodity	Parts per million
Alfalfa, forage	15
Alfalfa, hay	30
Alfalfa, seed	0.50
Almond, hulls	6
Animal feed, nongrass, group 18, forage	8
Animal feed, nongrass, group 18, hay	40
Artichoke, globe	0.60
Avocado	0.50
Barley, grain	3.0
Barley, hay	6.0
Barley, straw	20.0
Basil, dried leaves	40
Basil, fresh leaves	7
Bean, adzuki, dry seed	0.05
Bean, American potato, dry seed	0.05
Bean, asparagus, dry seed	0.05
Bean, asparagus, edible podded	0.7
Bean, black, dry seed	0.05
Bean, broad, dry seed	0.05
Bean, broad, succulent shelled	0.1
Bean, catjang, dry seed	0.05
Bean, catjang, edible podded	0.7
Bean, catjang, succulent shelled	0.1
Bean, cranberry, dry seed	0.05
Bean, dry, dry seed	0.05
Bean, field, dry seed	0.05
Bean, French, dry seed	0.05
Bean, French, edible podded	0.7
Bean, garden, dry seed	0.05
Bean, garden, edible podded	0.7
Bean, goa, dry seed	0.05
Bean, goa, edible podded	0.7
Bean, goa, succulent shelled	0.1
Bean, great northern, dry seed	0.05
Bean, green, dry seed	0.05
Bean, green, edible podded	0.7
Bean, guar, dry seed	0.05
Bean, guar, edible podded	0.7
Bean, kidney, dry seed	0.05
Bean, kidney, edible podded	0.7
Bean, lablab, dry seed	0.05
Bean, lablab, edible podded	0.7
Bean, lablab, succulent shelled	0.1
Bean, lima, dry seed	0.05
Bean, lima, succulent shelled	0.1
Bean, morama, dry seed	0.05
Bean, moth, dry seed	0.05
Bean, moth, edible podded	0.7
Bean, moth, succulent shelled	0.1
Bean, mung, dry seed	0.05
Bean, mung, edible podded	0.7
Bean, navy, dry seed	0.05
Bean, navy, edible podded	0.7
Bean, pink, dry seed	0.05
Bean, pinto, dry seed	0.05
Bean, red, dry seed	0.05
Bean, rice, dry seed	0.05
Bean, rice, edible podded	0.7
Bean, scarlet runner, dry seed	0.05
Bean, scarlet runner, edible podded	0.7
Bean, scarlet runner, succulent shelled	0.1
Bean, snap, edible podded	0.7
Bean, sword, dry seed	0.05
Bean, sword, edible podded	0.7
Bean, tepary, dry seed	0.05
Bean, urd, dry seed	0.05
Bean, urd, edible podded	0.7
Bean, wax, edible podded	0.7
Bean, wax, succulent shelled	0.1
Bean, yardlong, dry seed	0.05
Bean, yardlong, edible podded	0.7
Bean, yellow, dry seed	0.05
Beet, sugar, roots	0.05
Beet, sugar, tops	0.20
Brassica, leafy greens, subgroup 4-16B	14
Buckwheat, grain	3.0
Buckwheat, hay	6.0
Buckwheat, straw	20.0
Bushberry subgroup 13-07B	0.8
Caneberry subgroup 13-07A	0.8
Canistel	0.50
Castor oil plant, refined oil	0.4
Cattle, fat	1.00
Cattle, meat	0.2
Cattle, meat byproducts	0.05
Celtuce	10
Chickpea, dry seed	0.05
Chickpea, edible podded	0.7
Chickpea, succulent shelled	0.1
Chinese tallowtree, refined oil	0.4
Citrus, dried pulp	1.8
Citrus, oil	4.0
Corn, field, forage	9.0
Corn, field, grain	0.05
Corn, field, stover	30
Corn, pop, grain	0.05
Corn, pop, stover	30
Corn, sweet, forage	15.00
Corn, sweet, kernel plus cob with husks removed	0.05
Corn, sweet, stover	15.00
Cottonseed subgroup 20C	0.5
Cowpea, dry seed	0.05
Cowpea, edible podded	0.7
Cowpea, succulent shelled	0.1
Egg	0.05
Euphorbia, refined oil	0.4
Evening primrose, refined oil	0.4
Fennel, Florence, fresh leaves and stalk	10
Food commodities/feed commodities (other than those covered by a higher tolerance as a result of use on growing crops) in food/feed handling establishments	0.05
Fruit, citrus, group 10 ¹	0.35
Fruit, pome, group 11-10	2
Fruit, small, vine climbing, except fuzzy kiwifruit, subgroup 13-07F	2
Fruit, stone, group 12-12	2
Goat, fat	1.00
Goat, meat	0.2
Goat, meat byproducts	0.05
Grain, aspirated fractions	10.0
Gram, horse, dry seed	0.05
Grapefruit subgroup 10-10C	0.5
Grass, forage, fodder, and hay, group 17, forage	10
Grass, forage, fodder and hay, group 17, hay	35
Grass pea, dry seed	0.05
Grass pea, edible podded	0.7
Hog, fat	0.1
Hog, meat	0.05
Horse, fat	1.00
Horse, meat	0.2
Horse, meat byproducts	0.05
Jackbean, dry seed	0.05
Jackbean, edible podded	0.7
Jackbean, succulent shelled	0.1
Jojoba, refined oil	0.4
Kohlrabi	2
Leaf petiole vegetable subgroup 22B	10
Leafy greens subgroup 4-16A	10
Lemon/Lime subgroup 10-10B	0.3
Lentil, dry seed	0.05
Lentil, edible podded	0.7
Lentil, succulent shelled	0.1
Longbean, Chinese, dry seed	0.05
Longbean, Chinese, edible podded	0.7
Lupin, Andean, dry seed	0.05
Lupin, Andean, succulent shelled	0.1
Lupin, blue, dry seed	0.05
Lupin, blue, succulent shelled	0.1
Lupin, grain, dry seed	0.05
Lupin, grain, succulent shelled	0.1
Lupin, sweet white, dry seed	0.05
Lupin, sweet white, succulent shelled	0.1
Lupin, sweet, dry seed	0.05
Lupin, sweet, succulent shelled	0.1
Lupin, white, dry seed	0.05
Lupin, white, succulent shelled	0.1
Lupin, yellow, dry seed	0.05
Lupin, yellow, succulent shelled	0.1
Mango	0.70
Milk, fat (reflecting 0.10 in whole milk)	2.50
Niger seed, refined oil	0.4
Nut, tree, group 14-12	0.05
Oat, grain	3.0
Oat, hay	6.0
Oat, straw	20.0
Onion, bulb, subgroup 3-07A	0.1
Onion, green, subgroup 3-07B	3
Orange subgroup 10-10A	0.3
Papaya	0.50
Pea, blackeyed, dry seed	0.05
Pea, blackeyed, succulent shelled	0.1
Pea, crowder, dry seed	0.05
Pea, crowder, succulent shelled	0.1
Pea, dry, dry seed	0.05
Pea, dwarf, edible podded	0.7
Pea, English, succulent shelled	0.1
Pea, field, dry seed	0.05
Pea, garden, dry seed	0.05
Pea, garden, succulent shelled	0.1
Pea, green, dry seed	0.05
Pea, green, edible podded	0.7
Pea, green, succulent shelled	0.1
Pea, pigeon, dry seed	0.05
Pea, pigeon, edible podded	0.7
Pea, pigeon, succulent shelled	0.1
Pea, snap, edible podded	0.7
Pea, snow, edible podded	0.7
Pea, southern, dry seed	0.05
Pea, southern, succulent shelled	0.1
Pea, sugar snap, edible podded	0.7
Pea, winged, dry seed	0.05
Pea, winged, edible podded	0.7
Peanut	0.05
Poultry, fat	0.05
Poultry, meat	0.05
Quinoa, grain	3
Quinoa, hay	6
Quinoa, straw	20
Rapeseed subgroup 20A	0.2
Rice, grain	1.50
Rice, hulls	6.00
Rice, wild, grain	1.5
Rose hip, refined oil	0.4
Rye, grain	3.0
Rye, hay	6.0
Rye, straw	20.0
Sapodilla	0.50
Sapote, black	0.50
Sapote, mamey	0.50
Sheep, fat	1.00
Sheep, meat	0.2
Sheep, meat byproducts	0.05
Sorghum, grain, forage	0.1
Sorghum, grain, grain	0.5
Sorghum, grain, stover	5.0
Soybean, seed	0.05
Soybean, vegetable, dry seed	0.05
Soybean, vegetable, edible podded	0.7
Soybean, vegetable, succulent shelled	0.1
Star apple	0.50
Stokes aster, refined oil	0.4
Sugarcane, cane	0.60
Sunflower subgroup 20B	0.2
Sunflower, refined oil	0.5
Tallowwood, refined oil	0.4
Tea oil plant, refined oil	0.4
Teff, forage	3
Teff, grain	0.3
Teff, hay	6
Teff, straw	7
Vegetable, brassica, head and stem, group 5-16	2
Vegetable, cucurbit, group 9	0.2
Vegetable, fruiting, group 8-10	0.2
Vegetable, root and tuber, group 1, except sugar beet	0.1
Velvetbean, dry seed	0.05
Velvetbean, edible podded	0.7
Velvetbean, succulent shelled	0.1
Vernonia, refined oil	0.4
Wheat, forage	3.0
Wheat, grain	0.2
Wheat, hay	6.0
Wheat, straw	7.0
Yam bean, African, dry seed	0.05

¹ This tolerance expires on February 4, 2022.

(3) Tolerances are established for residues of the insecticide, alpha-cypermethrin, (R)-cyano(3-phenoxyphenyl)methyl (1S,3S)-rel-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane carboxylate, 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 total cypermethrin, cyano(3-phenoxyphenyl)methyl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane carboxylate, in or on the commodity.

Table 3 to Paragraph (a)(3)

Commodity	Parts per million
Alfalfa, hay	15
Beet, sugar, roots	0.05
Beet, sugar, tops	0.20
Brassica, head and stem, subgroup 5A	2.0
Cattle, fat	1.0
Cattle, meat	0.20
Cattle, meat byproducts	0.05
Citrus, dried pulp	1.8
Citrus, oil	4.0
Corn, field, grain	0.05
Corn, pop, grain	0.05
Corn, sweet, kernel plus cob with husks removed	0.05
Cotton, undelinted seed	0.50
Egg	0.05
Food commodities/feed commodities (other than those covered by a higher tolerance as a results of use on growing crops) in food/feed handling establishments	0.05
Fruit, citrus, group 10-10	0.35
Goat, fat	1.0
Goat, meat	0.20
Goat, meat byproducts	0.05
Hog, fat	0.10
Hog, meat	0.05
Horse, fat	1.0
Horse, meat	0.20
Horse, meat byproducts	0.05
Milk, fat, reflecting 0.10 ppm in whole milk	2.5
Nut, tree, group 14-12	0.05
Pea and bean, dried shelled, except soybean, subgroup 6C	0.05
Pea and bean, succulent shelled, subgroup 6B	0.10
Poultry, fat	0.05
Poultry, meat	0.05
Rice, grain	1.5
Sheep, fat	1.0
Sheep, meat	0.20
Sheep, meat byproducts	0.05
Sorghum, grain, grain	0.50
Soybean, seed	0.05
Vegetable, cucurbit, group 9	0.20
Vegetable, fruiting, group 8-10	0.20
Vegetable, leafy, group 4	10
Vegetable, legume, edible podded, subgroup 6A	0.50
Vegetable, root and tuber, group 1, except sugar beet	0.10
Wheat, grain	0.20

(b) Section 18 emergency exemptions. [Reserved]

(d) Indirect or inadvertent residues. [Reserved]

[62 FR 63235, 63243, Nov. 26, 1997, as amended at 63 FR 48586, Sept. 11, 1998; 66 FR 47993, Sept. 17, 2001; 67 FR 6430, Feb. 12, 2002; 67 FR 56495, Sept. 4, 2002; 69 FR 71717, Dec. 10, 2004; 71 FR 78382, Dec. 29, 2006; 72 FR 53462, Sept. 19, 2007; 72 FR 71801, Dec. 19, 2007; 73 FR 1525, Jan. 9, 2008; 77 FR 72984, Dec. 7, 2012; 78 FR 7275, Feb. 1, 2013; 79 FR 73213, Dec. 10, 2014; 79 FR 77394, Dec. 24, 2014; 80 FR 45438, July 30, 2015; 80 FR 72599, Nov. 20, 2015; 83 FR 25943, June 5, 2018; 86 FR 41903, Aug. 4, 2021; 88 FR 68481, Oct. 4, 2023; 90 FR 33282, July 17, 2025]

authority: 21 U.S.C. 321(q), 346a and 371

source: 36 FR 22540, Nov. 25, 1971, unless otherwise noted.

cite as: 40 CFR 180.418