Approval and Promulgation of Air Quality Implementation Plans; West Virginia; 2015 Ozone National Ambient Air Quality Standards

The Environmental Protection Agency (EPA) is approving revisions to the State of West Virginia state implementation plan (SIP). The revisions update the effective date by which the West Virginia regulations incorporate by reference the national ambient air quality standards (NAAQS), additional monitoring methods, and additional equivalent monitoring methods. This update will effectively add the following to the West Virginia SIP: The 2015 ozone NAAQS, monitoring reference and equivalent methods pertaining to fine particulate matter (PM2.5), Carbon Monoxide (CO), and course particulate matter (PM10), and it will revise the ozone monitoring season, the Federal Reference Method (FRM), the Federal Equivalent Method (FEM), and the Photochemical Assessment Monitoring Stations (PAMS) network. The SIP revision will also change a reference from the ``West Virginia Department of Environmental Protection,'' to the ``Division of Air Quality.'' EPA is approving these revisions in accordance with the requirements of the Clean Air Act (CAA).