# Residues of Quaternary Ammonium Compounds, N-Alkyl (C12-14) Dimethyl Ethylbenzyl Ammonium Chloride; Exemption from the Requirement of a Tolerance > **Rule** · Final rule. · Published 2010-07-14 · Effective 2010-07-14 · 75 FR 40729 ## Document - **Document number:** 2010-17156 - **Category:** pesticide - **Federal Register citation:** 75 FR 40729 - **CFR reference:** 40 CFR 180 - **Publication date:** 2010-07-14 - **Effective date:** 2010-07-14 - **EPA docket:** EPA-HQ-OPP-2008-0533 ## Abstract This regulation amends an existing exemption from the requirement of a tolerance for residues of n-alkyl (C12-14) dimethyl ethylbenzyl ammonium chloride on food contact surfaces when applied/used in public eating places, dairy processing equipment, and/ or food processing equipment and utensils. The regulation will exempt from the requirement of tolerance residues in food resulting from contact with surfaces treated with antimicrobial solutions where the end-use concentration of active quaternary compound does not exceed 400 parts per million (ppm). ## Source - [Federal Register document](https://www.federalregister.gov/documents/2010/07/14/2010-17156/residues-of-quaternary-ammonium-compounds-n-alkyl-c12-14-dimethyl-ethylbenzyl-ammonium-chloride) --- *AI Analytics · CC0 1.0*