Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; NOX RACT Requirements for Four Individual Sources in the Pittsburgh-Beaver Valley Area

EPA is taking direct final action to approve revisions to the Commonwealth of Pennsylvania's State Implementation Plan (SIP). The revisions were submitted by the Pennsylvania Department of Environmental Protection (PADEP) to establish and require reasonably available control technology (RACT) related requirements to limit nitrogen oxides ( NO<INF>X</INF>) from four sources. These sources are located in the Pittsburgh-Beaver Valley ozone nonattainment area (the Pittsburgh area). EPA is approving these revisions to the SIP in accordance with the Clean Air Act (CAA).