40 CFR 180.570: Isoxadifen-ethyl; tolerances for residues.

(a) General. (1) Tolerances are established for residues of isoxadifen-ethyl (ethyl 5,5-diphenyl-2-isoxazoline-3-carboxylate, (CAS No. 163520-33-0), and its metabolite: 4,5-dihydro-5,5-diphenyl-3-isoxazolecarboxylic acid, when used as an inert ingredient (safener) in or on the following raw agricultural commodities:

Commodity Parts per million

Corn, field, forage 0.20

Corn, field, grain 0.08

Corn, field, stover 0.40

Corn, oil 0.50

Corn, pop, grain 0.04

Corn, pop, stover 0.25

Corn, sweet, forage 0.30

Corn, sweet, kernel plus cob with husk removed 0.04

Corn, sweet, stover 0.45

(2) Tolerances are established for the residues of isoxadifen-ethyl (3-isoxazolecarboxylic acid, 4,5-dihydro-5,5-diphenyl-, ethyl ester (CAS No. 164520-33-0)), and its metabolites 4,5-dihydro-5,5-diphenyl-3-isoxazolecarboxylic acid and β-hydroxy-β-benzenepropanenitrile when used as an inert ingredient (safener) in or on the following raw agricultural commodities:

Commodity Parts per million

Rice, grain 0.10

Rice, hulls 0.50

(b) Section 18 emergency exemptions. [Reserved]

(c) Tolerances with regional registrations. [Reserved]

(d) Indirect or inadvertent residues. [Reserved]