This regulation establishes a tolerance for combined residues of isoxaflutole [5-cyclopropyl-4-(2-methylsulfonyl-4-trifluoromethyl benzoyl) isoxazole] and its metabolites 1-(2-methylsulfonyl-4- trifluoromethylphenyl)-2-cyano-3-cyclopropyl propan-1,3-dione and 2- methylsulphonyl-4-trifluoromethyl benzoic acid, calculated as the parent compound, in or on field corn, grain; field corn, fodder; field corn, forage; and establishes a tolerance for combined residues of the herbicide isoxaflutole [5-cyclopropyl-4-(2-methylsulfonyl-4- trifluoromethyl benzoyl) isoxazole] and its metabolite 1-(2- methylsulfonyl-4-trifluoromethylphenyl)-2-cyano-3-cyclopropyl propan- 1,3-dione, calculated as the parent compound, in or on the meat of cattle, goat, hogs, horses, poultry, and sheep; liver of cattle, goat, hogs, horses and sheep; meat byproducts (except liver) of cattle, goat, hogs, horses, and sheep; fat of cattle, goat, hogs, horses, poultry, and sheep; liver of poultry; eggs; and milk. Rhone-Poulenc Ag Company requested this tolerance under the Federal Food, Drug and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act of 1996 (Pub. L. 104-170).