Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Redesignation of the Clearfield/Indiana 8-Hour Ozone Nonattainment Area to Attainment and Approval of the Maintenance Plan and 2002 Base-Year Inventory

EPA is approving a State Implementation Plan (SIP) revision submitted by the Commonwealth of Pennsylvania. The Pennsylvania Department of Environmental Protection (PADEP) is requesting that the Clearfield and Indiana Counties ozone nonattainment area (Clearfield/ Indiana Area) be redesignated as attainment for the 1997 8-hour ozone national ambient air quality standard (NAAQS). EPA is approving the ozone redesignation request for the Clearfield/Indiana Area. In conjunction with its redesignation request, PADEP submitted a SIP revision consisting of a maintenance plan for the Clearfield/Indiana Area that provides for continued attainment of the 1997 8-hour ozone NAAQS for at least 10 years after redesignation. EPA is approving the 8-hour maintenance plan. PADEP also submitted a 2002 base year inventory for the Clearfield/Indiana Area, which EPA is approving. In addition, EPA is approving the adequacy determination for the motor vehicle emission budgets (MVEBs) that are identified in the Clearfield/ Indiana Area maintenance plan for purposes of transportation conformity, and is approving those MVEBs. EPA is approving the redesignation request, the maintenance plan, and the 2002 base year emissions inventory as revisions to the Pennsylvania SIP in accordance with the requirements of the Clean Air Act (CAA or the Act).