40 CFR § 180.535 - Fluroxypyr 1-methylheptyl ester; tolerances for residues.

§ 180.535 Fluroxypyr 1-methylheptyl ester; tolerances for residues.

(a) General. Tolerances are established for residues of the herbicide fluroxypyr 1-methylheptyl ester, including its metabolites and degradates, in or on the commodities listed in table 1 to this paragraph (a). Compliance with the tolerance levels specified in table 1 to this paragraph (a) is to be determined by measuring only the sum of the free and conjugated forms of fluroxypyr 1-methylheptyl ester [1-methylheptyl 2-[(4-amino-3,5-dichloro-6-fluoro-2-pyridinyl)oxy]acetate] and its metabolite fluroxypyr [2-[(4-amino-3,5-dichloro-6-fluoro-2-pyridinyl)oxy]acetic acid] calculated as the stoichiometric equivalent of fluroxypyr, in or on the commodity.

Table 1 to Paragraph (a)

Commodity Parts per million
Barley, forage 12
Barley, grain 0.5
Barley, hay 20
Barley, straw 12
Cattle, fat 0.1
Cattle, kidney 1.5
Cattle, meat byproducts 0.1
Corn, field, forage 1
Corn, field, grain 0.02
Corn, field, stover 0.5
Corn, sweet, forage 1
Corn, sweet, kernel plus cob with husks removed 0.02
Corn, sweet, stover 2
Fruit, pome, group 11 0.02
Garlic, bulb 0.03
Goat, fat 0.1
Goat, kidney 1.5
Goat, meat 0.1
Goat, meat byproducts 0.1
Grain, aspirated fractions 0.6
Grass, forage, fodder and hay, group 17, forage 120
Grass, forage, fodder and hay, group 17, hay 160
Hog, fat 0.1
Hog, kidney 1.5
Hog, meat 0.1
Hog, meat byproducts 0.1
Horse, fat 0.1
Horse, kidney 1.5
Horse, meat 0.1
Horse, meat byproducts 0.1
Milk 0.3
Millet, forage 12
Millet, grain 0.5
Millet, hay 20
Millet, proso, straw 12
Oat, forage 12
Oat, grain 0.5
Oat, hay 20
Oat, straw 12
Onion, bulb 0.03
Rice, bran 3
Rice, grain 1.5
Shallot, bulb 0.03
Sheep, fat 0.1
Sheep, kidney 1.5
Sheep, meat 0.1
Sheep, meat byproducts 0.1
Sorghum, grain, forage 2
Sorghum, grain, grain 0.02
Sorghum, grain, stover 4
Teff, forage 12
Teff, grain 0.5
Teff, hay 20
Teff, straw 12
Wheat, forage 12
Wheat, grain 0.5
Wheat, hay 20
Wheat, straw 12

(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; 91 FR 8113, Feb. 20, 2026]