What are the differences between HAP regulations and VOC regulations?
HAP regulations and VOC regulations: HAP regulations typically apply nationwide to facilities that have the “potential to emit” 10 tons or more per year of one HAP or 25 tons or more per year of all HAPs. VOC regulations, on the other hand, generally apply only to emitters in nonattainment areas. HAP regulations under the Clean Air Act are set by the EPA, although many states also operate their own air toxics programs pursuant to state environmental statutes. Most VOC regulations are set by state or local regulatory agencies– often based on guidance from the EPA, although as noted above, EPA has set national standards for VOC content of architectural coatings and a few other product categories.
