This regulation establishes tolerances for combined residues or residues of pendimethalin, N-(1-ethylpropyl)-3,4-dimethyl-2,6- dinitrobenzenamine, in or on grass forage, fodder, and hay crop group 17, forage; grass forage, fodder, and hay crop group 17, hay; and grass forage, fodder, and hay crop group 17, straw. BASF Corporation requested these tolerances under the Federal Food, Drug, and Cosmetic Act (FFDCA).