This regulation establishes new tolerances for combined residues of fipronil, its metabolites MB46136 and MB45950, and its photodegradate MB46513, in or on rice grain and rice straw. In pesticide petition (PP) 7F4832, Rhone Poulenc AG, Inc. requested these tolerances under the Federal Food, Drug and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act of 1966 (FQPA).