Environmental Protection Agency August 23, 2023 – Federal Register Recent Federal Regulation Documents

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the San Diego County Air Pollution Control District (SDCAPCD) portion of the California State Implementation Plan (SIP). The California Air Resources Board (CARB) submitted the rule, on behalf of SDCAPCD, to the EPA as part of the requirement to implement major source reasonable available control technology (RACT) for emissions of oxides of nitrogen (NOX) for the San Diego County ozone nonattainment area. This revision concerns NOX emissions from boilers, process heaters, and steam generators. We are approving a local rule to regulate these emission sources under the Clean Air Act (CAA or the ``Act'').

The Environmental Protection Agency (EPA) is finalizing approval of a State Implementation Plan (SIP) revision 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 revision updates portions of South Carolina's Prevention of Significant Deterioration (PSD) and Nonattainment New Source Review (NNSR) regulations, including changes to reflect the regulation of greenhouse gases (GHGs) pursuant to the Tailoring Rule and updates promulgated in the recent NSR Corrections Rule. With the exception of the Project Emissions Accounting provisions, which EPA expects to act on in a separate final rule, EPA is approving these revisions pursuant to the Clean Air Act (CAA or Act) and implementing Federal regulations.