---
kind: "section"
citation: "40 C.F.R. § 180.301"
title: "40"
number: "180.301"
heading: "Carboxin; tolerances for residues."
url: "https://uscodex.org/cfr/40/180.301"
---

# §180.301. Carboxin; tolerances for residues.

- (a) **General.** Tolerances are established for residues of carboxin, 5,6-dihydro-2-methyl-N-phenyl-1,4-oxathiin-3-carboxamide, including its metabolites and degradates, in or on the commodities in table 1 to [Paragraph (a)](#a). Compliance with the tolerance levels specified in table 1 to [Paragraph (a)](#a) is to be determined by measuring only those carboxin residues convertible to aniline, expressed as the stoichiometric equivalent of carboxin, in or on the commodities.
- (b) **Section 18 emergency exemptions.** [Reserved]
- (c) **Tolerances with regional registrations.** [Reserved]
- (d) **Indirect or inadvertent residues.** [Reserved]

## Notes

### Amendments

[47 FR 55222, Dec. 8, 1982, as amended at 50 FR 81, Jan. 2, 1985; 62 FR 4915, Feb. 3, 1997; 63 FR 4586, Jan. 30, 1998; 64 FR 11801, Mar. 10, 1999; 66 FR 9773, Feb. 12, 2001; 66 FR 64773, Dec. 14, 2001; 67 FR 40218, June 12, 2002; 67 FR 72853, Dec. 9, 2002; 71 FR 56383, Sept. 27, 2006; 80 FR 72598, Nov. 20, 2015; 91 FR 21388, Apr. 22, 2026; 91 FR 54234, Aug. 21, 2026]

### Authority

Authority: 21 U.S.C. 321(q), 346a and 371.

### Source

Source: 36 FR 22540, Nov. 25, 1971, unless otherwise noted.

### Amendments

[47 FR 55222, Dec. 8, 1982, as amended at 50 FR 81, Jan. 2, 1985; 62 FR 4915, Feb. 3, 1997; 63 FR 4586, Jan. 30, 1998; 64 FR 11801, Mar. 10, 1999; 66 FR 9773, Feb. 12, 2001; 66 FR 64773, Dec. 14, 2001; 67 FR 40218, June 12, 2002; 67 FR 72853, Dec. 9, 2002; 71 FR 56383, Sept. 27, 2006; 80 FR 72598, Nov. 20, 2015; 91 FR 21388, Apr. 22, 2026; 91 FR 54234, Aug. 21, 2026]