Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; 2002 Base Year Emissions Inventory, Reasonable Further Progress Plan, Contingency Measures, Reasonably Available Control Measures, and Transportation Conformity Budgets for the Pennsylvania Portion of the Philadelphia-Wilmington-Atlantic City 1997 8-Hour Moderate Ozone Nonattainment Area

EPA is approving a State Implementation Plan (SIP) revision submitted by the Commonwealth of Pennsylvania. The revision being approved contains a 2002 base year emissions inventory, a reasonable further progress (RFP) plan, RFP contingency measures demonstration, and reasonably available control measure (RACM) demonstration for the Pennsylvania portion of the Philadelphia-Wilmington-Atlantic City moderate 1997 8-hour ozone nonattainment area. This rulemaking applies only to the Pennsylvania portion of this multi-state nonattainment area--an area that also lies in part in New Jersey, Maryland, and Delaware. EPA is simultaneously approving transportation conformity motor vehicle emissions budgets (MVEBs) associated with this same SIP revision. EPA is approving this SIP revision because it satisfies Clean Air Act (CAA) requirements for the 2002 emissions inventory, RFP, RACM, RFP contingency measures, and transportation conformity requirements-- as defined by the CAA for areas classified as moderate nonattainment for the 1997 8-hour ozone national ambient air quality standard (NAAQS). EPA is approving the SIP revision in accordance with the requirements of the CAA and EPA regulations.