ARSD 74:36:08:11. National emission standards for hazardous air pollutants for industrial process cooling towers

The national emission standards for hazardous air pollutants for industrial process cooling towers are those in 40 C.F.R. Part 63, Subpart Q (July 1, 2024). A source that operates a unit subject to Subpart Q is exempt from the obligations to obtain a Part 70 operating permit if the source is not required to obtain a Part 70 operating permit for a reason other than the source is subject to Subpart Q. Exempted sources must still meet the applicable requirements in Subpart Q.