This regulation establishes an exemption from the requirement of a tolerance for residues of propanoic acid, and its calcium and sodium salts on all raw agricultural commodities; changes the chemical name from propionic acid to propanoic acid; reorganizes the existing tolerance exemptions; and reorganizes the current tolerance exemptions when used as an inert ingredient. Nayfa Industries, Inc. requested an exemption from the requirement of tolerances for sugar beets, potatoes, and sweet potatoes under the Federal Food, Drug, and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act of 1996 (FQPA).