---
kind: "section"
citation: "40 C.F.R. § 180.611"
title: "40"
number: "180.611"
heading: "Pinoxaden; tolerances for residues."
url: "https://uscodex.org/cfr/40/180.611"
---

# §180.611. Pinoxaden; tolerances for residues.

- (a) **General.**
  - (1) Tolerances are established for residues of the herbicide pinoxaden, including its metabolites and degradates, in or on the commodities in table 1 to this [paragraph (a)(1)](#a-1). Compliance with the tolerance levels specified in table 1 to this [paragraph (a)(1)](#a-1) is to be determined by measuring pinoxaden (8-(2,6-diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-7-oxo-7H-pyrazolo[1,2-d][1,4,5] oxadiazepin-9-yl 2,2-dimethylpropanoate) and its metabolites 8-(2,6-diethyl-4-methyl-phenyl)-tetrahydro-pyrazolo[1,2-d][1,4,5]oxadiazepine-7,9-dione and free and conjugated forms of 8-(2,6-diethyl-4-hydroxymethyl-phenyl)-tetrahydro-pyrazolo[1,2-d][1,4,5] oxadiazepine-7,9-dione, and 4-(7,9-dioxo-hexahydro-pyrazolo[1,2-d] [1,4,5]oxadiazepin-8-yl)-3,5-diethyl-benzoic acid, calculated as the stoichiometric equivalent of pinoxaden, in or on the commodity.
  - (2) Tolerances are established for residues of the herbicide pinoxaden, including its metabolites and degradates, in or on the commodities in table 2 to this [paragraph (a)(2)](#a-2). Compliance with the tolerance levels specified in table 2 to this [paragraph (a)(2)](#a-2) is to be determined by measuring pinoxaden (8-(2,6-diethyl-4-methylphenyl)-1,2,4,5-tetrahydro-7-oxo-7H-pyrazolo[1,2-d][1,4,5]oxadiazepin-9-yl 2,2-dimethylpropanoate) and its metabolites 8-(2,6-diethyl-4-methyl-phenyl)-tetrahydro-pyrazolo[1,2-d][1,4,5]oxadiazepine-7,9-dione and free and conjugated forms of 8-(2,6-diethyl-4-hydroxymethyl-phenyl)-tetrahydro-pyrazolo[1,2-d][1,4,5] oxadiazepine-7,9-dione, calculated as the stoichiometric equivalent of pinoxaden, in or on the commodity.
- (b) **Section 18 emergency exemptions.** [Reserved]
- (c) **Tolerances with regional registrations.** [Reserved]
- (d) **Indirect or inadvertent residues.** [Reserved]

## Notes

### Amendments

[70 FR 43322, July 27, 2005, as amended at 91 FR 8117, 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

[70 FR 43322, July 27, 2005, as amended at 91 FR 8117, Feb. 20, 2026]