Residues of Quaternany Ammonium Compounds, Didecyl Dimethyl Ammonium Carbonate and Didecyl Dimethyl Ammonium Bicarbonate; Exemption from the Requirement of a Tolerance

This regulation establishes an exemption from the requirement of a tolerance for residues of the quaternany ammonium compounds, didecyl dimethyl ammonium carbonate and didecyl dimethyl ammonium bicarbonate (hereinafter cited jointly as DDACB), on food-contact surfaces when applied/used in public eating places, dairy processing equipment, and/or food processing equipment and utensils. Lonza, Inc., submitted a petition to EPA under the Federal Food, Drug, and Cosmetic Act (FFDCA), as amended by the Food Quality Protection Act of 1996 (FQPA), requesting to establish concentration limits of DDACB in end- use products eligible for the exemption from the requirement of a tolerance. As amended, the regulation will exempt solutions from the requirement of tolerance residues resulting from contact with surfaces treated with solutions where the end-use concentration of DDACB does not exceed 240 parts per million (ppm).