Section 180.560 - Cloquintocet-mexyl; tolerances for residues(a)General. Tolerances are established for residues of the inert ingredient cloquintocet-mexyl, including its metabolites and degradates, in or on the commodities in the following table when used as a safener in herbicide formulations. Compliance with the tolerance levels specified is to be determined by measuring the combined residues of cloquintocet-mexyl, (acetic acid [(5-chloro-8-quinolinyl)oxy]-, 1-methylhexyl ester; CAS Reg. No. 99607-70-2) and its acid metabolite (5-chloro-8-quinolinoxyacetic acid), expressed as cloquintocet-mexyl, in or on the following commodities: Table 1 to Paragraph (a)
| Commodity | Parts per million |
| Barley, grain | 0.1 |
| Barley, hay | 0.1 |
| Barley, straw | 0.1 |
| Teff, forage1 | 0.2 |
| Teff, grain1 | 0.1 |
| Teff, hay1 | 0.5 |
| Teff, straw1 | 0.1 |
| Wheat, forage | 0.2 |
| Wheat, grain | 0.1 |
| Wheat, hay | 0.5 |
| Wheat, straw | 0.1 |
1 There are no U.S. registrations for use on this commodity as of March 22, 2017.
(b)Section 18 emergency exemptions. [Reserved](c)Tolerances with regional registrations. [Reserved](d)Indirect or inadvertent residues. [Reserved] 65 FR 38764 , June 22, 2000, as amended at 70 FR 74688 , Dec. 16, 2005; 73 FR 11820 , Mar. 5, 2008; 75 FR 16020 , Mar. 31, 2010; 76 FR 38035 , June 29, 2011; 81 FR 50634 , Aug. 2, 2016; 82 FR 14623 , Mar. 22, 2017; 83 FR 45843 , Sept. 11, 2018; 89 FR 18553 , Mar. 14, 2024 81 FR 50634 , 8/2/2016; 82 FR 14623 , 3/22/2017; 83 FR 45843 , 9/11/2018; 89 FR 18553 , 3/14/2024