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Air Quality

Greenhouse Gas Emissions

EPA Tailoring Rule

DHEC has developed this webpage to assist you with implementation of this EPA rule. Besides providing basic GHG permitting guidance, this site will provide sample calculations, links to information about GHGs, contact information, and future updates. This site will continue to grow as more guidance is developed.

The EPA Tailoring Rule sets thresholds for GHG emissions that define when permits under the New Source Review, Prevention of Significant Deterioration (PSD) and title V Operating Permit programs are required for new and existing industrial facilities. The following EPA link contains resources and guidance to assist state and local permitting authorities as they implement their Clean Air Act permitting programs for GHG emissions.


For more information please contact the Bureau of Air Quality at (803) 898-4123 or by email.