40 CFR § 180.576 - Cyhalofop-butyl; tolerances for residues.

---
identifier: "/us/cfr/t40/s180.576"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.576 - Cyhalofop-butyl; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.576"
section_name: "Cyhalofop-butyl; tolerances for residues."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "E"
subchapter_name: "PESTICIDE PROGRAMS"
part_number: "180"
part_name: "TOLERANCES AND EXEMPTIONS FOR PESTICIDE CHEMICAL RESIDUES IN FOOD"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 321(q), 346a and 371."
regulatory_source: "36 FR 22540, Nov. 25, 1971, unless otherwise noted."
cfr_part: "180"
---


# 180.576 Cyhalofop-butyl; tolerances for residues.

(a) *General.* Tolerances are established for residues of cyhalofop-butyl, including its metabolites and degradates, in or on the commodities listed in the table below. Compliance with the tolerance levels specified below is to be determined by measuring cyhalofop butyl [R-( + )-n-butyl-2-(4(4-cyano-2-fluorophenoxy)-phenoxy)propionate], cyhalofop acid [R-( + )-2-(4(4-cyano-2-fluorophenoxy)-phenoxy)propionic acid], and the di-acid metabolite [(2R)-4-(4-(1-carboxyethoxy)phenoxy)-3-fluorobenzoic acid].

| Commodity | Parts per million |
| --- | --- |
| Rice, grain | 0.40 |
| Wild rice, grain | 0.40 |

(b) *Section 18 emergency exemptions.* [Reserved]

(c) *Tolerances with regional registrations.* [Reserved]

(d) *Indirect or inadvertent residues.* [Reserved]

[67 FR 43256, June 27, 2002, as amended at 74 FR 15880, Apr. 8, 2009; 76 FR 82157, Dec. 30, 2011]