Air Plan Approval; South Carolina: New Source Review Updates
The Environmental Protection Agency (EPA or the Agency) is proposing to approve State Implementation Plan (SIP) revisions submitted by the State of South Carolina, through the South Carolina Department of Health and Environmental Control (hereinafter referred to as SC DHEC or South Carolina) via a letter dated February 3, 2022. The SIP revisions include updates to South Carolina's Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NNSR) regulations. Specifically, the updates incorporate recent changes to the federal New Source Review (NSR) regulations, consisting of a clarification to the Project Emissions Accounting provisions, updates promulgated in the recent NSR Corrections Rule, and updates to reflect the regulation of greenhouse gases (GHGs) pursuant to the Tailoring Rule. EPA is proposing to approve these revisions pursuant to the Clean Air Act (CAA or Act) and implementing federal regulations.