Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; VOC and NOX RACT Determinations for the Allegheny Ludlum Corporation's Brackenridge Facility in the Pittsburgh-Beaver Valley Area

EPA is taking final action to approve a revision to the Commonwealth of Pennsylvania's State Implementation Plan (SIP). The revision was submitted by the Pennsylvania Department of Environmental Protection (PADEP) to establish and require reasonably available control technology (RACT) for the Allegheny Ludlum Corporation's Brackenridge facility, a major source of volatile organic compounds (VOC) and nitrogen oxides (NO<INF>X</INF>) located in the Pittsburgh- Beaver Valley ozone nonattainment area (the Pittsburgh area). EPA is approving this revision to establish RACT requirements in the SIP in accordance with the Clean Air Act (CAA).