This regulation amends the exemption from the requirement of a tolerance for residues of acetic acid (CAS Reg. No. 64-19-7) when used as an inert ingredient in antimicrobial pesticide formulations used on dairy and food-processing equipment and utensils, to allow for a limitation of 1200 ppm. Technology Sciences Group, Inc. on behalf of West Agro, Inc. submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), requesting an amendment to the existing exemption from the requirement of a tolerance. This regulation eliminates the need to establish a maximum permissible level for residues of acetic acid.