This rule establishes time-limited tolerances, to expire on December 31, 1995, 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 corn (fodder, forage, grain and fresh [including sweet kernels plus cobs with husks removed]) at 0.01 part per million (ppm), milk at 0.01 part per million (ppm), and fat, kidney, liver, meat, and meat byproducts of cattle, goats, hogs, horses, and sheep at 0.05 part per million (ppm). Ciba-Geigy Corp. requested this regulation pursuant to the Federal Food, Drug and Cosmetic Act (FFDCA). The regulation establishes maximum permissible levels for residues of the herbicide in or on the commodities.