Current President of CHDCA, Certified Hood & Duct Cleaning Association. Doc also sits on the National Fire Protection Association 96 (NFPA 96 Standard for Ventilation Control and Fire Protection of Commercial Cooking Operations), Underwriters Laboratory 1978 (Requirements covering factory-built grease ducts and grease duct assemblies that are intended to be installed at reduced clearances), Underwriters Laboratory 1046 (Grease Filters for Exhaust Ducts) and Underwriters Laboratory 710 / B (Exhaust hoods with and without exhaust dampers.)