Regulations last checked for updates: Nov 22, 2024

Title 40 - Protection of Environment last revised: Nov 20, 2024
§ 180.535 - Fluroxypyr 1-methylheptyl ester; tolerances for residues.

(a) General. Tolerances are established for combined residues of fluroxypyr 1-methylheptyl ester [1-methylheptyl ((4-amino-3,5-dichloro-6-fluoro-2-pyridinyl)oxy)acetate] and its metabolite fluroxypyr [((4-amino-3,5-dichloro-6-fluoro-2-pyridinyl)oxy)acetic acid] in or on the following raw agricultural commodities. Compliance with the established tolerance levels is determined by measuring only the sum of fluroxypyr 1-methylheptyl ester [1-methylheptyl ((4-amino-3, 5-dichloro-6-fluoro-2-pyridinyl)oxy)acetate] and its metabolite fluroxypyr [((4-amino-3,5-dichloro-6-fluoro-2-pyridinyl)oxy)acetic acid] calculated as the stoichiometric equivalent of fluroxypyr.

Commodity Parts per million
Barley, grain0.5
Barley, hay12.0
Barley, hay20.0
Barley, straw12.0
Cattle, fat0.1
Cattle, kidney1.5
Cattle, meat0.1
Cattle, meat byproducts0.1
Corn, field, forage1.0
Corn, field, grain0.02
Corn, field, stover0.5
Corn, sweet, forage1.0
Corn, sweet, kernel plus cob with husks removed0.02
Corn, sweet, stover2.0
Fruit, pome, group 110.02
Garlic, bulb0.03
Goat, fat0.1
Goat, kidney1.5
Goat, meat0.1
Goat, meat byproducts0.1
Grain, aspirated fractions0.6
Grass, forage120
Grass, hay160
Hog, fat0.1
Hog, kidney1.5
Hog, meat0.1
Hog, meat byproducts0.1
Horse, fat0.1
Horse, kidney1.5
Horse, meat0.1
Horse, meat byproducts0.1
Milk0.3
Millet, forage12.0
Millet, grain0.5
Millet, hay20.0
Millet, proso, straw12.0
Oat, forage12.0
Oat, grain0.5
Oat, hay20.0
Oat, straw12.0
Onion, bulb0.03
Rice, bran3.0
Rice, grain1.5
Shallot, bulb0.03
Sheep, fat0.1
Sheep, kidney1.5
Sheep, meat0.1
Sheep, meat byproducts0.1
Sorghum, grain, forage2.0
Sorghum, grain, grain0.02
Sorghum, grain, stover4.0
Teff, forage12
Teff, grain0.50
Teff, hay20
Teff, straw12
Wheat, forage12.0
Wheat, grain0.5
Wheat, hay20.0
Wheat, straw12.0

(b) Section 18 emergency exemptions. [Reserved]

(c) Tolerances with regional registrations. [Reserved]

(d) Indirect or inadvertent residues. [Reserved]

[63 FR 52169, Sept. 30, 1998, as amended at 64 FR 22799, Apr. 28, 1999; 66 FR 37598, July 19, 2001; 66 FR 47971, Sept. 17, 2001; 67 FR 46884, July 17, 2002; 67 FR 60146, Sept. 25, 2002; 68 FR 75438, Dec. 31, 2003; 69 FR 2074, Jan. 14, 2004; 70 FR 3649, Jan. 26, 2005; 70 FR 7047, Feb. 10, 2005; 71 FR 76204, Dec. 20, 2006; 72 FR 73635, Dec. 28, 2007; 78 FR 3333, Jan. 16, 2013; 83 FR 29706, June 26, 2018]
authority: 21 U.S.C. 321(q), 346a and 371
source: 36 FR 22540, Nov. 25, 1971, unless otherwise noted.
cite as: 40 CFR 180.535