Approval and Promulgation of Implementation Plans; State of California; Regional Haze and Interstate Transport

Under the Clean Air Act ("CAA" or "Act"), EPA is approving a State Implementation Plan ("SIP") revision submitted by the State of California on November 16, 2007, for the purpose of addressing the interstate transport provisions of CAA section 110(a)(2)(D)(i)(I) for the 1997 8-hour ozone National Ambient Air Quality Standards ("NAAQS" or "standards") and the 1997 fine particulate matter ("PM<INF>2.5</INF>") NAAQS. Section 110(a)(2)(D)(i) of the CAA requires that each State have adequate provisions to prohibit air emissions from adversely affecting air quality in other States through interstate transport. Specifically, EPA is finalizing approval of California's SIP revision for the 1997 8-hour ozone and 1997 PM<INF>2.5</INF> NAAQS as meeting the requirements of CAA section 110(a)(2)(D)(i)(I) to prohibit emissions that will contribute significantly to nonattainment of these standards in any other State and to prohibit emissions that will interfere with maintenance of these standards by any other State. EPA proposed to approve these SIP revisions on March 17, 2011 (76 FR 14616).