§180.500. Imazapyr; tolerances for residues.
40 C.F.R. § 180.500
General. Tolerances are established for residues of the herbicide, imazapyr, including its metabolites and degradates, in or on the commodities in the following table. Compliance with the tolerance levels specified in the following table is to be determined by measuring only the residues of imazapyr [2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-pyridinecarboxylic acid].
Section 18 emergency exemptions. [Reserved]
Tolerances with regional registrations. [Reserved]
Indirect or inadvertent residues. [Reserved]
Notes, amendments, and revision history
Amendments
[68 FR 55484, Sept. 26, 2003, as amended at 78 FR 66653, Nov. 6, 2013; 79 FR 19487, Apr. 9, 2014; 88 FR 57894, Aug. 24, 2023; 91 FR 9727, Feb. 27, 2026]
Authority
Authority: 21 U.S.C. 321(q), 346a and 371.
Source
Source: 36 FR 22540, Nov. 25, 1971, unless otherwise noted.
Amendments
[68 FR 55484, Sept. 26, 2003, as amended at 78 FR 66653, Nov. 6, 2013; 79 FR 19487, Apr. 9, 2014; 88 FR 57894, Aug. 24, 2023; 91 FR 9727, Feb. 27, 2026]