This regulation establishes tolerances for residues of chlorimuron ethyl, including its metabolites and degradates, in or on corn, field, forage; corn, field grain; corn, field, stover; grain, aspirated fractions; soybean, forage; and soybean, hay. In addition, the presently established tolerance term, "soybean" is being revised to "soybean, seed." E.I. du Pont de Nemours and Company requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA).