Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes: California

EPA is granting a request submitted by the State to redesignate the South Coast from nonattainment to attainment for the CO National Ambient Air Quality Standards (NAAQS). EPA is also approving a state implementation plan (SIP) revision for the South Coast nonattainment area in California as meeting the Clean Air Act (CAA) requirements for maintenance plans for carbon monoxide (CO). EPA is finding adequate and approving motor vehicle emission budgets, which are included in the maintenance plan. Finally, EPA is approving the California motor vehicle inspection and maintenance (I/M) program as meeting the low enhanced I/M requirements for CO in the South Coast.