This regulation establishes a tolerance for combined residues of S-metolachlor Acetamid, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2- methoxy-1-methylethyl)-, (S) and its metabolites, determined as the derivatives, 2-(2-ethyl-6-methylphenyl)amino-1-propanol and 4-(2-ethyl- 6-methylphenyl)-2-hydroxy-5-methyl-3-morpholinone, each expressed as the parent compound S-metolachlor in or on the raw agricultural commodities grass forage, grass hay, spinach, sugar beet, sugar beet molasses, sugar beet tops, sunflower seed, sunflower meal, and tomato. The Interregional Research Project No. 4 (IR-4) and Syngenta Crop Protection requested theses tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act of 1996 (FQPA).