Regulations last checked for updates: Feb 12, 2026

Title 40 - Protection of Environment last revised: Dec 22, 2026
All TitlesTitle 40Chapter IPart 180Subpart C - Subpart C—Specific Tolerances
View all text of Subpart C [§ 180.101 - § 180.730]
§ 180.451 - Tribenuron methyl; tolerances for residues.

(a) General. Tolerances are established for residues of the herbicide tribenuron methyl and its metabolites and degradates in or on the commodities in the following table. Compliance with the tolerance levels specified below is to be determined by measuring only tribenuron methyl, methyl-2-[[[[N-(4-methoxy-6-methyl-1,3,5-triazin-2-yl) methylamino] carbonyl] amino] sulfonyl] benzoate, in or on the following commodities:

Table 1 to Paragraph (a)

Commodity Parts per
million
Amaranth, grain, forage0.3
Amaranth, grain, grain0.05
Amaranth, grain, hay0.5
Amaranth, grain, straw0.1
Amaranth, purple, forage0.3
Amaranth, purple, grain0.05
Amaranth, purple, hay0.5
Amaranth, purple, straw0.1
Barley, grain0.05
Barley, hay0.4
Barley, straw0.10
Bean, adzuki, dry seed0.01
Bean, American potato, dry seed0.01
Bean, asparagus, dry seed0.01
Bean, black, dry seed0.01
Bean, broad, dry seed0.01
Bean, catjang, dry seed0.01
Bean, cranberry, dry seed0.01
Bean, dry, dry seed0.01
Bean, field, dry seed0.01
Bean, French, dry seed0.01
Bean, garden, dry seed0.01
Bean, goa, dry seed0.01
Bean, great northern, dry seed0.01
Bean, green, dry seed0.01
Bean, guar, dry seed0.01
Bean, kidney, dry seed0.01
Bean, lablab, dry seed0.01
Bean, lima, dry seed0.01
Bean, morama, dry seed0.01
Bean, moth, dry seed0.01
Bean, mung, dry seed0.01
Bean, navy, dry seed0.01
Bean, pink, dry seed0.01
Bean, pinto, dry seed0.01
Bean, red, dry seed0.01
Bean, rice, dry seed0.01
Bean, scarlet runner, dry seed0.01
Bean, sword, dry seed0.01
Bean, tepary, dry seed0.01
Bean, urd, dry seed0.01
Bean, yardlong, dry seed0.01
Bean, yellow, dry seed0.01
Buckwheat, grain0.05
Buckwheat, hay0.4
Buckwheat, straw0.1
Buckwheat, tartary, grain0.05
Buckwheat, tartary, hay0.4
Buckwheat, tartary, straw0.1
Canarygrass, annual, grain0.05
Canarygrass, annual, hay0.4
Canarygrass, annual, straw0.1
Cañihua, forage0.3
Cañihua, grain0.05
Cañihua, hay0.5
Cañihua, straw0.1
Chia, forage0.3
Chia, grain0.05
Chia, hay0.5
Chia, straw0.1
Chickpea, dry seed0.01
Corn, field, forage0.15
Corn, field, grain0.01
Corn, field, stover1.1
Cottonseed subgroup 20C0.02
Cowpea, dry seed0.01
Cram-cram, forage0.3
Cram-cram, grain0.05
Cram-cram, hay0.5
Cram-cram, straw0.1
Fonio, black, forage0.05
Fonio, black, grain0.05
Fonio, black, stover0.05
Fonio, white, forage0.05
Fonio, white, grain0.05
Fonio, white, stover0.05
Grain, aspirated fractions1.5
Gram, horse, dry seed0.01
Huauzontle, grain, forage0.3
Huauzontle, grain, grain0.05
Huauzontle, grain, hay0.5
Huauzontle, grain, straw0.1
Inca wheat, forage0.3
Inca wheat, grain0.05
Inca wheat, hay0.5
Inca wheat, straw0.1
Jackbean, dry seed0.01
Job's tears, forage0.05
Job's tears, grain0.05
Job's tears, stover0.05
Lentil, dry seed0.01
Longbean, Chinese, dry seed0.01
Lupin, Andean, dry seed0.01
Lupin, blue, dry seed0.01
Lupin, grain, dry seed0.01
Lupin, sweet, dry seed0.01
Lupin, white, dry seed0.01
Lupin, white sweet, dry seed0.01
Lupin, yellow, dry seed0.01
Millet, barnyard, forage0.05
Millet, barnyard, grain0.05
Millet, barnyard, stover0.05
Millet, finger, forage0.05
Millet, finger, grain0.05
Millet, finger, stover0.05
Millet, foxtail, forage0.05
Millet, foxtail, grain0.05
Millet, foxtail, stover0.05
Millet, little, forage0.05
Millet, little, grain0.05
Millet, little, stover0.05
Millet, pearl, forage0.05
Millet, pearl, grain0.05
Millet, pearl, stover0.05
Millet, proso, forage0.05
Millet, proso, grain0.05
Millet, proso, stover0.05
Oat, Abyssinian, grain0.05
Oat, Abyssinian, hay0.4
Oat, Abyssinian, straw0.1
Oat, common, grain0.05
Oat, common, hay0.4
Oat, common, straw0.1
Oat, forage0.05
Oat, grain0.05
Oat, hay0.4
Oat, naked, grain0.05
Oat, naked, hay0.4
Oat, naked, straw0.1
Oat, sand, grain0.05
Oat, sand, hay0.4
Oat, sand, straw0.1
Oat, straw0.10
Pea, blackeyed, dry seed0.01
Pea, crowder, dry seed0.01
Pea, dry, dry seed0.01
Pea, field, dry seed0.01
Pea, field, hay0.01
Pea, field, vines0.01
Pea, garden, dry seed0.01
Pea, grass, dry seed0.01
Pea, green, dry seed0.01
Pea, pigeon, dry seed0.01
Pea, southern, dry seed0.01
Pea, winged, dry seed0.01
Popcorn, forage0.15
Popcorn, grain0.01
Popcorn, stover1.1
Princess-feather, forage0.3
Princess-feather, grain0.05
Princess-feather, hay0.5
Princess-feather, straw0.1
Psyllium, forage0.3
Psyllium, grain0.05
Psyllium, hay0.5
Psyllium, straw0.1
Psyllium, blond, forage0.3
Psyllium, blond, grain0.05
Psyllium, blond, hay0.5
Psyllium, blond, straw0.1
Quinoa, forage0.3
Quinoa, grain0.05
Quinoa, hay0.5
Quinoa, straw0.1
Rapeseed subgroup 20A0.02
Rice, grain0.05
Rice, African, grain0.05
Rye, forage0.3
Rye, grain0.05
Rye, hay0.5
Rye, straw0.1
Sorghum, grain, forage0.05
Sorghum, grain, grain0.05
Sorghum, grain, stover0.05
Soybean, forage0.07
Soybean, hay0.35
Soybean, hulls0.04
Soybean, seed0.01
Soybean, vegetable, dry seed0.01
Sunflower, seed0.05
Teff, forage0.05
Teff, grain0.05
Teff, stover0.05
Teosinte, forage0.15
Teosinte, grain0.01
Teosinte, stover1.1
Triticale, forage0.3
Triticale, grain0.05
Triticale, hay0.5
Triticale, straw0.1
Velvetbean, dry seed0.01
Wheat, forage0.3
Wheat, grain0.05
Wheat, hay0.5
Wheat, straw0.10
Wheat, club, forage0.3
Wheat, club, grain0.05
Wheat, club, hay0.5
Wheat, club, straw0.1
Wheat, common, forage0.3
Wheat, common, grain0.05
Wheat, common, hay0.5
Wheat, common, straw0.1
Wheat, durum, forage0.3
Wheat, durum, grain0.05
Wheat, durum, hay0.5
Wheat, durum, straw0.1
Wheat, einkorn, forage0.3
Wheat, einkorn, grain0.05
Wheat, einkorn, hay0.5
Wheat, einkorn, straw0.1
Wheat, emmer, forage0.3
Wheat, emmer, grain0.05
Wheat, emmer, hay0.5
Wheat, emmer, straw0.1
Wheat, macha, forage0.3
Wheat, macha, grain0.05
Wheat, macha, hay0.5
Wheat, macha, straw0.1
Wheat, oriental, forage0.3
Wheat, oriental, grain0.05
Wheat, oriental, hay0.5
Wheat, oriental, straw0.1
Wheat, Persian, forage0.3
Wheat, Persian, grain0.05
Wheat, Persian, hay0.5
Wheat, Persian, straw0.1
Wheat, Polish, forage0.3
Wheat, Polish, grain0.05
Wheat, Polish, hay0.5
Wheat, Polish, straw0.1
Wheat, poulard, forage0.3
Wheat, poulard, grain0.05
Wheat, poulard, hay0.5
Wheat, poulard, straw0.1
Wheat, shot, forage0.3
Wheat, shot, grain0.05
Wheat, shot, hay0.5
Wheat, shot, straw0.1
Wheat, spelt, forage0.3
Wheat, spelt, grain0.05
Wheat, spelt, hay0.5
Wheat, spelt, straw0.1
Wheat, timopheevi, forage0.3
Wheat, timopheevi, grain0.05
Wheat, timopheevi, hay0.5
Wheat, timopheevi, straw0.1
Wheat, vavilovi, forage0.3
Wheat, vavilovi, grain0.05
Wheat, vavilovi, hay0.5
Wheat, vavilovi, straw0.1
Wheat, wild einkorn, forage0.3
Wheat, wild einkorn, grain0.05
Wheat, wild einkorn, hay0.5
Wheat, wild einkorn, straw0.1
Wheat, wild emmer, forage0.3
Wheat, wild emmer, grain0.05
Wheat, wild emmer, hay0.5
Wheat, wild emmer, straw0.1
Wheatgrass, intermediate, forage0.3
Wheatgrass, intermediate, grain0.05
Wheatgrass, intermediate, hay0.5
Wheatgrass, intermediate, straw0.1
Wild rice, grain0.05
Wild rice, eastern, grain0.05
Yam bean, African, dry seed0.01

(b) Section 18 emergency exemptions. [Reserved]

(c) Tolerances with regional registrations. Tolerances with regional registration, as defined in § 180.1(l) are established for residues of the herbicide tribenuron methyl (methyl-2-[[[[N-(4-methoxy-6-methyl-1,3,5-triazin-2-yl) methylamino] carbonyl]amino]sulfonyl] benzoate) in or on the following raw agricultural commodities:

Commodity Parts per million
Grass, forage, fodder and hay, group 17, except bermudagrass; forage0.10
Grass, forage, fodder and hay, group 17, except bermudagrass; hay0.10

(d) Indirect or inadvertent residues. [Reserved]

[69 FR 56718, Sept. 22, 2004, as amended at 72 FR 11789, Mar. 14, 2007; 73 FR 47065, Aug. 13, 2008; 74 FR 67128, Dec. 18, 2009; 76 FR 34885, June 15, 2011; 80 FR 72599, Nov. 20, 2015; 87 FR 42337, July 15, 2022]
authority: 21 U.S.C. 321(q), 346a and 371
source: 36 FR 22540, Nov. 25, 1971, unless otherwise noted.
cite as: 40 CFR 180.451
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