Air Plan Revisions; California Air Plan Revisions; San Joaquin Valley Unified Air Pollution Control District; Stationary Source Permits

The Environmental Protection Agency (EPA) is proposing action on three permitting rules submitted as a revision to the San Joaquin Valley Unified Air Pollution Control District (SJVUAPCD or "District") portion of the California State Implementation Plan (SIP). These revisions concern the District's New Source Review (NSR) permitting program for new and modified sources of air pollution under section 110(a)(2)(C) and part D of title I of the Clean Air Act (CAA or "Act"). This action will update the California SIP with rules that the District has revised to address deficiencies identified in a previous limited disapproval action and to incorporate other revisions related to NSR requirements. We are taking comments on this proposal and plan to follow with a final action. Elsewhere in this Federal Register, we are making an interim final determination that will defer the imposition of CAA sanctions associated with our previous limited disapproval action. This action also proposes to revise regulatory text to clarify that the SJVUAPCD is not subject to the federal implementation plan related to protection of visibility.