Approval of California Air Plan Revisions, San Joaquin Valley Unified Air Pollution Control District and South Coast Air Quality Management District

The Environmental Protection Agency (EPA) is proposing to approve revisions to the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD) and South Coast Air Quality Management District (SCAQMD) portions of the California State Implementation Plan (SIP). These revisions concern emissions of oxides of nitrogen (NOX) from fan-driven natural gas-fired central furnaces for residences and businesses. We are proposing to approve local rules to regulate these emission sources under the Clean Air Act (CAA or the Act). We are taking comments on this proposal and plan to follow with a final action.