This regulation establishes a tolerance for combined residues of imazapic, (<plus-minus>)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)- 5-oxo-1H-imidazol-2-yl]-5-methyl-3-pyridinecarboxylic acid and its metabolite (<plus-minus>)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5- oxo-1H-imidazol-2-yl]-5-hydroxymethyl-3-pyridinecarboxylic acid, both free CL 263284 and conjugated CL 189215) in or on grass, forage and grass, hay and the combined residues of imazapic and its metabolite CL 263284 in or on milk; fat, meat, and meat byproducts (except kidney) of cattle, goats, horses, and sheep; and kidney of cattle, goats, horses, and sheep. BASF requested this tolerance under the Federal Food, Drug, and Cosmetic Act, as amended by the Food Quality Protection Act of 1996.