This regulation establishes tolerances for combined residues of glufosinate ammonium (butanoic acid, 2-amino-4- (hydroxymethylphosphinyl)-mono ammonium salt) and metabolites (3- methylphosphinico-propionic acid and 2-acetamido-4-methylphosphinico- butanoic acid), expressed as 2-amino-4-(hydroxymethylphosphinyl) butanoic acid equivalents in or on transgenic canola meal and seed and trangenic sugar beet molasses, roots and tops. AgrEvo USA Company requested these tolerances under the Federal Food, Drug, and Cosmetic Act, as amended by the Food Quality Protection Act of 1996. Revoked/ expired tolerances under Sec. 180.473 (b) are deleted from the regulation.