This regulation establishes tolerances for combined residues of diflubenzuron and its metabolites 4-chlorophenylurea and 4- chloroaniline in or on brassica, leafy greens subgroup 5B, turnip greens, peanut, peanut hay, peanut oil, barley grain, barley hay, barley straw, oat grain, oat forage, oat hay, oat straw, wheat grain, wheat forage, wheat hay, wheat straw, aspirated grain fractions, and pummelo. The Interregional Research Project <greek-i>4 requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act of 1996 (FQPA).