3203. PHYSICAL FACILITIES - CLEANING VENTILATION SYSTEMS, NUISANCE AND DISCHARGE PROHIBITION

3203 PHYSICAL FACILITIES ─ CLEANING VENTILATION SYSTEMS, NUISANCE AND DISCHARGE PROHIBITION 3203.1 Intake and exhaust air ducts shall be cleaned and filters changed so they are not a source of contamination by dust, dirt, and other materials. 3203.2 If vented to the outside, ventilation systems shall not create a public health hazard or nuisance or unlawful discharge. SOURCE: Final Rulemaking published at 50 DCR 4394 (June 6, 2003); as amended by Final Rulemaking published at 59 DCR 13690 (November 30, 2012).