This regulation establishes an exemption from the requirement of a tolerance for residues of lactic acid (CAS Reg. No. 50-21-5) when used as an inert ingredient (acidifier) on food-contact surfaces in public eating places, dairy processing equipment, food-processing equipment and utensils at 10,000 parts per million (ppm). Ecolab Inc. submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting establishment of an exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of lactic acid when used in accordance with the terms specified in the regulation.