This regulation establishes a tolerance for combined residues of quizalofop ethyl in or on the raw agricultural commodities barley, grain; barley, hay; barley, straw; flax, seed; milk, fat; sunflower, seed; wheat, forage; wheat, grain; wheat, hay; and wheat, straw. Nissan Chemical Industries, Ltd requested this tolerance under the Federal Food, Drug, and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act of 1996 (FQPA).