40 CFR 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
| Commodity | Parts per million |
|---|---|
| Almond, hulls | 0.50 |
| Banana 1 | 0.30 |
| Beet, sugar, molasses | 5.0 |
| Beet, sugar, roots | 0.9 |
| Beet, sugar, tops (leaves) | 1.5 |
| Bushberry subgroup 13-07B | 0.15 |
| Canola, meal | 1.1 |
| Cattle, fat | 0.40 |
| Cattle, meat | 0.15 |
| Cattle, meat byproducts | 6.0 |
| Corn, field forage | 4.0 |
| Corn, field, grain | 0.20 |
| Corn, field, stover | 6.0 |
| Corn, sweet, forage | 1.5 |
| Corn, sweet, kernels plus cob with husks removed | 0.30 |
| Corn, sweet, stover | 6.0 |
| Cotton, gin byproducts | 30 |
| Cottonseed subgroup 20C | 15 |
| Egg | 0.15 |
| Fig, dried | 0.15 |
| Fruit, citrus, group 10-10 | 0.15 |
| Fruit, pome, group 11-10 | 0.25 |
| Fruit, small, vine climbing, except fuzzy kiwifruit, subgroup 13-07F | 0.05 |
| Fruit, stone, group 12-12 | 0.30 |
| Goat, fat | 0.40 |
| Goat, meat | 0.15 |
| Goat, meat byproducts | 6.0 |
| Grain aspirated fractions | 25 |
| Hog, fat | 0.40 |
| Hog, meat | 0.15 |
| Hog, meat byproducts | 6.0 |
| Hop, dried cones | 0.9 |
| Horse, fat | 0.40 |
| Horse, meat | 0.15 |
| Horse, meat byproducts | 6.0 |
| Melon subgroup 9A | 0.08 |
| Milk | 0.15 |
| Nut, tree, group 14-12 | 0.50 |
| Pepper/eggplant subgroup 8-10B | 0.15 |
| Potato, chips | 1.6 |
| Potato granules/flakes | 2.0 |
| Poultry, fat | 0.15 |
| Poultry, meat | 0.15 |
| Poultry, meat byproducts | 0.60 |
| Rapeseed subgroup 20A | 0.4 |
| Rice, grain | 1.0 |
| Rice, hull | 2.0 |
| Sheep, fat | 0.40 |
| Sheep, meat | 0.15 |
| Sheep, meat byproducts | 6.0 |
| Soybean | 2.0 |
| Soybean, hulls | 10 |
| Squash/cucumber subgroup 9B | 0.15 |
| Tomato, paste | 0.15 |
| Tomato subgroup 8-10A | 0.1 |
| Tropical and subtropical, medium to large fruit, edible peel, subgroup 23B | 0.1 |
| Tropical and subtropical, medium to large fruit, smooth, inedible peel, subgroup 24B | 0.2 |
| Tropical and subtropical, small fruit, edible peel, subgroup 23A | 0.5 |
| Tropical and subtropical, small fruit, inedible peel, subgroup 24A | 0.1 |
| Vegetable, tuberous and corm, subgroup 1C | 0.8 |
(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 (
| Commodity | Parts per million |
|---|---|
| Grass, forage | 0.15 |
| Grass, hay | 0.2 |
(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)
| Commodity | Parts per million |
|---|---|
| Barley, hay | 0.40 |
| Barley, straw | 0.40 |
| Buckwheat, fodder | 0.40 |
| Buckwheat, forage | 0.40 |
| Oat, forage | 0.40 |
| Oat, hay | 0.40 |
| Oat, straw | 0.40 |
| Rye, forage | 0.40 |
| Rye, straw | 0.40 |
| Teosinte | 0.40 |
| Triticale | 0.40 |
| Wheat, forage | 0.40 |
| Wheat, hay | 0.40 |
| Wheat, straw | 0.40 |