This regulation establishes an exemption from the requirement of a tolerance for residues of FD&C Yellow No. 5 (CAS Reg. No. 1934-21- 0) when used as an inert ingredient (dye) in antimicrobial pesticide formulations applied to food-contact surfaces in public eating places, dairy-processing equipment, and food-processing equipment and utensils. Exponent, Inc. on behalf of 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. These regulations eliminate the need to establish a maximum permissible level for residues of FD&C Yellow No. 5.