This regulation establishes tolerances for residues of thifensulfuron methyl in or on rice, grain; rice, straw; sorghum, grain, forage; sorghum, grain, grain; and sorghum, grain, stover. E. I. DuPont de Nemours and Company requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act of 1996 (FQPA).