Approval and Promulgation of Implementation Plans; California State Implementation Plan Revision; Monterey Bay Unified Air Pollution Control District

EPA is taking direct final action to approve revisions to the California State Implementation Plan (SIP). The revisions concern Rule 207 (Review of New or Modified Sources) from the Monterey Bay Unified Air Pollution Control District (MBUAPCD), which is being revised to add an emission offsets exemption for pollution control projects that are mandated by District, state, or federal regulation. This approval action will incorporate the revised rule into the federally approved SIP. The intended effect of approving this rule is to regulate emissions from stationary sources of air pollution subject to District new source review (NSR) regulation in accordance with the requirements of the Clean Air Act, as amended in 1990 (CAA or the Act). EPA is finalizing the approval of these revisions into the California SIP under provisions of the CAA regarding EPA action on SIP submittals, SIPs for national primary and secondary ambient air quality standards and plan requirements for nonattainment areas.