§180.417. Triclopyr; tolerances for residues.
40 C.F.R. § 180.417
General.
Tolerances are established for residues of the herbicide triclopyr, including its metabolites and degradates, in or on the commodities in table 1 to this paragraph (a)(1) resulting from the application of the butoxyethyl ester of triclopyr, triethylamine salt of triclopyr, or choline salt of triclopyr. Compliance with the tolerance levels specified in table 1 to this paragraph (a)(1) is to be determined by measuring only triclopyr, 2-[(3,5,6-trichloro-2-pyridinyl)oxy]acetic acid in or on the commodity.
Tolerances are established for residues of the herbicide triclopyr, including its metabolites and degradates, in or on the commodities in table 2 to this paragraph (a)(2) resulting from the application of the butoxyethyl ester of triclopyr, triethylamine salt of triclopyr, or choline salt of triclopyr. Compliance with the tolerance levels specified in table 2 to this paragraph (a)(2) is to be determined by measuring the combined residues of triclopyr, 2-[(3,5,6-trichloro-2-pyridinyl)oxy]acetic acid, and its metabolite 3,5,6-trichloro-2-pyridinol (TCP), calculated as the stoichiometric equivalent of triclopyr in or on the commodity.
Tolerances are established for residues of the herbicide triclopyr, including its metabolites and degradates, in or on the commodities in table 3 to this paragraph (a)(3) resulting from the application of the butoxyethyl ester of triclopyr, triethylamine salt of triclopyr, or choline salt of triclopyr. Compliance with the tolerance levels specified in table 3 to this paragraph (a)(3) is to be determined by measuring the combined residues of triclopyr (2-[(3,5,6-trichloro-2-pyridinyl)oxy]acetic acid) and its metabolites 3,5,6-trichloro-2-pyridinol (TCP) and 2-methoxy-3,5,6-trichloropyridine (TMP), calculated as the stoichiometric equivalent of triclopyr in or on the commodity.
Section 18 emergency exemptions. Time-limited tolerances specified in the following table are established for residues of the triclopyr (2-[(3,5,6-trichloro-2-pyridinyl)oxy]acetic acid), including its metabolites and degradates in or on the specified agricultural commodities, resulting from use of the pesticide pursuant to FIFRA section 18 emergency exemptions. The tolerances expire on the date specified in the table.
Tolerances with regional registrations. [Reserved]
Indirect or inadvertent residues. [Reserved]
Notes, amendments, and revision history
Amendments
[50 FR 18486, May 1, 1985, as amended at 55 FR 26440, June 28, 1990; 60 FR 4095, Jan. 20, 1995; 62 FR 46894, Sept. 5, 1997; 63 FR 45406, Aug. 26, 1998; 67 FR 35048, May 17, 2002; 67 FR 58725, Sept. 18, 2002; 72 FR 41931, Aug. 1, 2007; 80 FR 72599, Nov. 20, 2015; 81 FR 9359, Feb. 25, 2016; 82 FR 26603, June 8, 2017; 86 FR 8703, Feb. 9, 2021; 88 FR 75506, Nov. 3, 2023; 89 FR 14594, Feb. 28, 2024; 90 FR 31893, July 16, 2025; 91 FR 8107, Feb. 20, 2026]
Authority
Authority: 21 U.S.C. 321(q), 346a and 371.
Source
Source: 36 FR 22540, Nov. 25, 1971, unless otherwise noted.
Amendments
[50 FR 18486, May 1, 1985, as amended at 55 FR 26440, June 28, 1990; 60 FR 4095, Jan. 20, 1995; 62 FR 46894, Sept. 5, 1997; 63 FR 45406, Aug. 26, 1998; 67 FR 35048, May 17, 2002; 67 FR 58725, Sept. 18, 2002; 72 FR 41931, Aug. 1, 2007; 80 FR 72599, Nov. 20, 2015; 81 FR 9359, Feb. 25, 2016; 82 FR 26603, June 8, 2017; 86 FR 8703, Feb. 9, 2021; 88 FR 75506, Nov. 3, 2023; 89 FR 14594, Feb. 28, 2024; 90 FR 31893, July 16, 2025; 91 FR 8107, Feb. 20, 2026]