This regulation establishes tolerances for combined residues of amicarbazone and its metabolites in or on field corn and livestock commodities and indirect or inadvertent residues of amicarbazone and its metabolites in alfalfa, cotton, soybean and wheat. Arysta Lifescience North American Corporation (perviously known as Arvesta Corporation) requested this tolerance under the Federal Food, Drug, and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act of 1996 (FQPA).