This regulation establishes an exemption from the requirement of a tolerance for residues of FD&C Green No. 3 (CAS Reg. No. 2353-45- 9) when used as an inert ingredient (dye) in antimicrobial formulations, for use on food contact surfaces in public eating places, dairy processing equipment, and food processing equipment and utensils. The firm Exponent, on behalf of Ecolab 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 FD&C Green No. 3. FD&C Green No. 3 is also known as Fast Green FCF.