Regulations last checked for updates: Oct 02, 2026

Title 40 - Protection of Environment last revised: Sep 29, 2026
§ 180.377 - Diflubenzuron; tolerances for residues.

(a) General. (1) Tolerances are established for residues of diflubenzuron, 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 diflubenzuron (N-[[(4-chlorophenyl)amino]carbonyl]-2,6-difluorobenzamide).

Table 1 to Paragraph (a)(1)

Commodity Parts per million
Artichoke, globe6
Cattle, fat0.1
Cattle, meat0.1
Cotton, gin byproducts30
Cottonseed subgroup 20C0.2
Egg0.07
Goat, fat0.1
Goat, meat0.1
Hog, fat0.1
Hog, meat0.1
Horse, fat0.1
Horse, meat0.1
Milk0.05
Mushroom8
Poultry, fat0.1
Poultry, meat byproducts0.08
Poultry, meat0.05
Sheep, fat0.1
Sheep, meat0.1
Soybean, seed0.05
Soybean, hulls0.5

(2) Tolerances are established for residues of the insecticide diflubenzuron (N-[[(4-chlorophenyl)amino]carbonyl]-2,6-difluorobenzamide), in or on the commodities in the table below. Compliance with the tolerance levels specified below is to be determined by measuring only the sum of diflubenzuron (N-[[(4-chlorophenyl)amino]carbonyl]-2,6-difluorobenzamide), 4-chlorophenylyurea and 4-chloroaniline, calculated as the stoichiometric equivalent of diflubenzuron, in or on the commodity.

Table 2 to Paragraph (a)(2)

Commodity Parts per million
Almond, hulls6
Barley, grain0.06
Barley, hay3
Barley, straw1.8
Brassica, leafy greens, subgroup 4-16B10
Carrot, roots0.2
Cattle, meat byproducts0.15
Fruit, citrus, group 10-10, oil32
Fruit, citrus, group 10-103
Goat, meat byproducts0.15
Grain, aspirated fractions11
Grass, forage, fodder and hay, group 176
Hog, meat byproducts0.15
Horse, meat byproducts0.15
Oat, forage7
Oat, grain0.06
Oat, hay6
Oat, straw3.5
Peanut0.1
Peanut, hay55
Peanut, refined oil0.2
Peach subgroup 12-12B0.5
Pear0.5
Pepper/eggplant subgroup 8-10B1
Plum subgroup 12-12C0.5
Nut, tree, group 14-120.2
Rice, grain0.02
Sheep, meat byproducts0.15
Turnip greens9
Wheat, forage7
Wheat, grain0.06
Wheat, hay6
Wheat, straw3.5

(b) [Reserved]

(c) Tolerances with regional registrations. Tolerances with regional registration are established for residues of the insecticide diflubenzuron (N-[[(4-chlorophenyl)amino]carbonyl]-2,6-difluorobenzamide), in or on the commodities in the table below. Compliance with the tolerance levels specified below is to be determined by measuring only the sum of diflubenzuron (N-[[(4-chlorophenyl)amino]carbonyl]-2,6-difluorobenzamide), 4-chlorophenylyurea and 4-chloroaniline, calculated as the stoichiometric equivalent of diflubenzuron, in or on the commodity.

Table 3 to Paragraph (c)

Commodity Parts per million
Alfalfa, forage6
Alfalfa, hay20
Alfalfa, seed0.9

(d) Indirect or inadvertent residues. [Reserved]

[65 FR 33699, May 24, 2000] Editorial Note:For Federal Register citations affecting § 180.377, see the List of CFR Sections Affected, which appears in the Finding Aids section of the printed volume and at www.govinfo.gov.
authority: 21 U.S.C. 321(q), 346a and 371
source: 36 FR 22540, Nov. 25, 1971, unless otherwise noted.
cite as: 40 CFR 180.377