This regulation establishes a tolerance for residues of flufenpyr-ethyl; acetic acid, [2-chloro-4-fluoro-5-[5-methyl-6-oxo-4- (trifluoromethyl)-1-(6H)-pyridazinyl]-phenoxy]-ethyl ester], in or on field corn, soybeans, and sugarcane, and the combined residues of flufenpyr-ethyl and its metabolite, S-3153 acid-4-OH; [2-chloro-4- hydroxy-5-[5-methyl-6-oxo-4-(trifluoromethyl)-1-(6H)-pyridazinyl]- phenoxy]-acetic acid, free and conjugated, in or on field corn forage and field corn stover. Valent USA Corporation requested this tolerance under the Federal Food, Drug, and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act (FQPA) of 1996.