Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Reasonably Available Control Technology Requirements for Volatile Organic Compounds and Nitrogen Oxides in the Pittsburgh-Beaver Valley 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 Pittsburgh-Beaver Valley ozone nonattainment area (the Pittsburgh area). EPA is proposing to convert 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 Pittsburgh 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 Pittsburgh area.