Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Reasonably Available Control Technology Requirements for Volatile Organic Compounds and Nitrogen Oxides in the Philadelphia-Wilmington-Trenton Area

EPA is removing the limited status of its approval of the Commonwealth of Pennsylvania State Implementation Plan (SIP) revision that requires all major sources of volatile organic compounds (VOC) and nitrogen oxides ( NO<INF>X</INF>) to implement reasonably available control technology (RACT) as it applies in the Philadelphia-Wilmington- Trenton ozone nonattainment area (the Philadelphia area). EPA is converting its limited approval of Pennsylvania's VOC and NO<INF>X</INF> RACT regulations to full approval because EPA has approved all of the case-by-case RACT determinations submitted by Pennsylvania for the affected sources located in the Philadelphia area. The intended effect of this action is to remove the limited nature of EPA's approval of Pennsylvania's VOC and NO<INF>X</INF> RACT regulations as they apply in the Philadelphia area.