EPA is establishing time-limited tolerances for residues of the herbicide prosulfuron, 1-(4-methoxy-6-methyl-triazin-2-yl)-3-[2- (3,3,3-trifluoropropyl)-phenylsulfonyl]-urea in or on the raw agricultural commodities cereal grains group (except rice and wild rice), grain; cereal grains group (except rice and wild rice), forage; cereal grains group (except rice and wild rice), fodder, cereal grains group (except rice and wild rice), straw; and cereal grains group (except rice and wild rice), hay. The Agency has not completed the regulatory assessment of the science findings; therefore, these tolerances are being established with an expiration date. These tolerances were requested by the Ciba-Geigy Corporation.