As of November 13, 2015, all owners and operators of cooling towers in New York must abide by New York State Department of Health (DOH) regulations concerning operation and maintenance of cooling towers, evaporative condensers or fluid coolers. The regulation was implemented to aid in the control of Legionella and are intended to minimize potential exposures to the public who live and work near cooling towers and equipment. This regulation requires registration and periodic reporting, testing, inspection, and certification.