Regulations last checked for updates: Oct 02, 2026

Title 40 - Protection of Environment last revised: Sep 29, 2026
§ 180.383 - Sodium salt of acifluorfen; tolerances for residues.

(a) General. Tolerances are established for residues of the herbicide sodium acifluorfen (sodium 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoate), including its metabolites and degradates, in or on the commodities in the following table. Compliance with the tolerance levels specified in the following table is to be determined by measuring only the sum of acifluorfen acid (5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acid), acifluorfen methyl ester(methyl 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoate), acifluorfen amine, (5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-aminobenzoic acid), and acifluorfen amine methyl ester(methyl 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-aminobenzoate), calculated as the stoichiometric equivalent of acifluorfen acid, in or on the commodities.

Table 1 to Paragraph (a)

Commodity Parts per
million
Beet, sugar, roots0.06
Berry, low growing, subgroup 13-07G0.1
Peanut0.1
Rice, grain0.1
Soybean, seed0.1
Soybean, vegetable, edible podded0.09
Soybean, vegetable, succulent shelled0.09

(b) [Reserved]

(c) Tolerances with regional restrictions. [Reserved]

(d) Indirect or inadvertent residues. [Reserved]

[45 FR 24877, Apr. 11, 1980, as amended at 46 FR 61272, Dec. 16, 1981; 47 FR 39490, Sept. 8, 1982; 61 FR 30165, June 14, 1996; 62 FR 39974, July 25, 1997; 67 FR 35048, May 17, 2002; 69 FR 6567, Feb. 11, 2004; 71 FR 54434, Sept. 15, 2006; 80 FR 72598, Nov. 20, 2015; 87 FR 18722, Mar. 31, 2022; 88 FR 48388, July 27, 2023; 89 FR 85069, Oct. 25, 2024; 91 FR 61328, Sept. 29, 2026]
authority: 21 U.S.C. 321(q), 346a and 371
source: 36 FR 22540, Nov. 25, 1971, unless otherwise noted.
cite as: 40 CFR 180.383