StacksVerified U.S. regulatory reference

40 CFR §180.411

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
  1. (a)General. Tolerances are established for residues of the herbicide fluazifop-P-butyl, butyl (2R)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoate, including its metabolites and degradates, in or on the commodities in table 1 to this paragraph (a). Compliance with the tolerance levels specified in table 1 is to be determined by measuring only those fluazifop-P-butyl residues convertible to fluazifop, 2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acid, expressed as fluazifop, in or on the commodity”.
  2. (b)[Reserved]
  3. (c)Tolerances with regional registrations. Tolerances are established for residues of the herbicide fluazifop-P-butyl, butyl (2R)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoate, including its metabolites and degradates, in or on the commodities in table 2 to this paragraph (c). Compliance with the tolerance levels specified in table 2 is to be determined by measuring only those fluazifop-P-butyl residues convertible to fluazifop, 2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acid, expressed as fluazifop, in or on the commodity”.
  4. (d)Indirect or inadvertent residues. Tolerances are established for residues of the herbicide fluazifop-P-butyl, butyl (2R)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoate, including its metabolites and degradates, in or on the commodities in table 3 to this paragraph (d). Compliance with the tolerance levels specified in table 3 is to be determined by measuring only those fluazifop-P-butyl residues convertible to 5-trifluoromethyl-2-pyridinone (TFP), expressed as TFP, in or on the commodity.