StacksVerified U.S. regulatory reference

40 CFR §180.570

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
  1. (a)General.
    1. (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:
    2. (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:
  2. (b)Section 18 emergency exemptions. [Reserved]
  3. (c)Tolerances with regional registrations. [Reserved]
  4. (d)Indirect or inadvertent residues. [Reserved]