40 C.F.R. § 180.473

Current through September 30, 2024
Section 180.473 - Glufosinate; tolerances for residues
(a)General. Tolerances are established for residues of glufosinate, 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 the sum of glufosinate (2-amino-4-(hydroxymethylphosphinyl)butanoic acid) and its metabolites, 2-(acetylamino)-4-(hydroxymethyl phosphinyl) butanoic acid, and 3-(hydroxymethylphosphinyl) propanoic acid, expressed as 2-amino-4-(hydroxymethylphosphinyl)butanoic acid equivalents.

Table 1 to Paragraph (a)

CommodityParts per million
Almond, hulls0.50
Banana10.30
Beet, sugar, molasses5.0
Beet, sugar, roots0.9
Beet, sugar, tops (leaves)1.5
Bushberry subgroup 13-07B0.15
Canola, meal1.1
Cattle, fat0.40
Cattle, meat0.15
Cattle, meat byproducts6.0
Corn, field forage4.0
Corn, field, grain0.20
Corn, field, stover6.0
Corn, sweet, forage1.5
Corn, sweet, kernels plus cob with husks removed0.30
Corn, sweet, stover6.0
Cotton, gin byproducts30
Cottonseed subgroup 20C15
Egg0.15
Fig, dried0.15
Fruit, citrus, group 10-100.15
Fruit, pome, group 11-100.25
Fruit, small, vine climbing, except fuzzy kiwifruit, subgroup 13-07F0.05
Fruit, stone, group 12-120.30
Goat, fat0.40
Goat, meat0.15
Goat, meat byproducts6.0
Grain aspirated fractions25
Hog, fat0.40
Hog, meat0.15
Hog, meat byproducts6.0
Hop, dried cones0.9
Horse, fat0.40
Horse, meat0.15
Horse, meat byproducts6.0
Melon subgroup 9A0.08
Milk0.15
Nut, tree, group 14-120.50
Pepper/eggplant subgroup 8-10B0.15
Potato, chips1.6
Potato granules/flakes2.0
Poultry, fat0.15
Poultry, meat0.15
Poultry, meat byproducts0.60
Rapeseed subgroup 20A0.4
Rice, grain1.0
Rice, hull2.0
Sheep, fat0.40
Sheep, meat0.15
Sheep, meat byproducts6.0
Soybean2.0
Soybean, hulls10
Squash/cucumber subgroup 9B0.15
Tomato, paste0.15
Tomato subgroup 8-10A0.1
Tropical and subtropical, medium to large fruit, edible peel, subgroup 23B0.1
Tropical and subtropical, medium to large fruit, smooth, inedible peel, subgroup 24B0.2
Tropical and subtropical, small fruit, edible peel, subgroup 23A0.5
Tropical and subtropical, small fruit, inedible peel, subgroup 24A0.1
Vegetable, tuberous and corm, subgroup 1C0.8

(b)Section 18 emergency exemptions. [Reserved]
(c)Tolerances with regional registrations. Tolerances with regional registrations are established for residues of glufosinate, 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 the sum of glufosinate, (2-amino-4-(hydroxymethylphosphinyl)butanoic acid) and its metabolites, 2-(acetylamino)-4-(hydroxymethyl phosphinyl) butanoic acid, and 3-(hydroxymethylphosphinyl) propanoic acid, expressed as 2-amino-4-(hydroxymethylphosphinyl)butanoic acid equivalents.

Table 2 to Paragraph (c)

CommodityParts per
million
Grass, forage0.15
Grass, hay0.2

(d)Indirect or inadvertent residues. Tolerances are established for indirect or inadvertent residues of glufosinate, including its metabolites and degradates, in or on the commodities in the following table, as a result of the application of glufosinate to crops listed in paragraph (a) of this section. Compliance with the tolerance levels specified in the following table is to be determined by measuring the sum of glufosinate (2-amino-4-(hydroxymethylphosphinyl) butanoic acid) and its metabolite, 3-(hydroxymethylphosphinyl) propanoic acid, expressed as 2-amino-4-(hydroxymethylphosphinyl)butanoic acid equivalents.

Table 3 to Paragraph (d)

CommodityParts per million
Barley, hay0.40
Barley, straw0.40
Buckwheat, fodder0.40
Buckwheat, forage0.40
Oat, forage0.40
Oat, hay0.40
Oat, straw0.40
Rye, forage0.40
Rye, straw0.40
Teosinte0.40
Triticale0.40
Wheat, forage0.40
Wheat, hay0.40
Wheat, straw0.40

40 C.F.R. §180.473

68 FR 55849, Sept. 29, 2003, as amended at 71 FR 25945, May 3, 2006; 72 FR 72625, Dec. 21, 2007; 76 FR 23497, Apr. 27, 2011; 77 FR 59113, Sept. 26, 2012; 80 FR 72599, Nov. 20, 2015; 84 FR 21708, May 15, 2019; 87 FR 57626, Sept. 21, 2022; 88 FR 39780, June 20, 2023
80 FR 72593, 5/18/2016; 84 FR 21708, 5/15/2019; 87 FR 57626, 9/21/2022; 88 FR 39780, 6/20/2023