40 CFR § 180.577 - Bispyribac-sodium; tolerances for residues.
---
identifier: "/us/cfr/t40/s180.577"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 180.577 - Bispyribac-sodium; tolerances for residues."
title_number: 40
title_name: "Protection of Environment"
section_number: "180.577"
section_name: "Bispyribac-sodium; 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"
---
# 180.577 Bispyribac-sodium; tolerances for residues.
(a) *General.* Tolerances are established for residues of the herbicide bispyribac-sodium, including its metabolites and degradates, in or on the commodity listed below. Compliance with the tolerance level specified below is to be determined by measuring only bispyribac-sodium, (2,6-bis[(4,6-dimethoxy-2-pyrimidinyl)oxy]benzoic acid, sodium salt), in or on the following raw agricultural commodities:
| Commodity | Parts per million |
| --- | --- |
| Fish, freshwater | 0.01 |
| Rice, grain | 0.02 |
(b) *Section 18 emergency exemptions.* [Reserved]
(c) *Tolerances with regional registrations.* [Reserved]
(d) *Indirect or inadvertent residues.* [Reserved]
[66 FR 48097, Sept. 18, 2001, as amended at 76 FR 5716, Feb. 2, 2011; 80 FR 72599, Nov. 20, 2015]