Environmental Protection Agency July 13, 2006 – Federal Register Recent Federal Regulation Documents

EPA is proposing to approve a redesignation request and a State Implementation Plan (SIP) revision for the Huntington portion of the Huntington-Ashland, WV-KY (herein referred to as the ``Huntington- Ashland area'') interstate area from nonattainment to attainment of the 8-hour ozone National Ambient Air Quality Standard (NAAQS). The West Virginia Department of Environmental Protection (WVDEP) is requesting that the Cabell and Wayne County, West Virginia (Huntington) portion of the Huntington-Ashland area be redesignated as attainment for the 8- hour ozone NAAQS. The interstate Huntington-Ashland 8-hour ozone nonattainment area is comprised of three counties (Cabell and Wayne Counties, West Virginia and Boyd County, Kentucky). EPA is proposing to approve the ozone redesignation request for the Huntington portion of the Huntington-Ashland area. In conjunction with its redesignation request, the WVDEP submitted a SIP revision consisting of a maintenance plan for Huntington that provides for continued attainment of the 8- hour ozone NAAQS for the next 12 years. EPA is proposing to make a determination that Huntington has attained the 8-hour ozone NAAQS based upon three years of complete, quality-assured ambient air quality ozone monitoring data for 2003-2005. EPA's proposed approval of the 8-hour ozone redesignation request is based on its determination that Huntington has met the criteria for redesignation to attainment specified in the Clean Air Act (CAA). EPA is providing information on the status of its adequacy determination for the motor vehicle emission budgets (MVEBs) that are identified in the Huntington maintenance plan for purposes of transportation conformity, and is also proposing to approve those MVEBs. EPA is proposing approval of the redesignation request and of the maintenance plan revision to the West Virginia SIP in accordance with the requirements of the CAA.

EPA is approving a State Implementation Plan (SIP) revision submitted by the Commonwealth of Virginia. This revision establishes and requires major new and major modified sources of volatile organic compounds (VOCs) or nitrogen oxides (NOX) to meet certain nonattainment New Source Review (NSR) requirements if they are located (or are proposing to locate) in Virginia's portion of the Ozone Transport Region (OTR). The intended effect of this action is the approval of a State Implementation Plan (SIP) revision submitted by the Commonwealth of Virginia for NSR in the OTR.

The Environmental Protection Agency (EPA or Agency) is taking final action to approve the nonattainment and maintenance plan for particulate matter with an aerodynamic diameter less than or equal to ten micrometers (PM-10) for the Portneuf Valley, PM-10 nonattainment area in Idaho. EPA is also granting Idaho's request to redesignate the Portneuf Valley PM-10 nonattainment area to attainment for the National Ambient Air Quality Standards (NAAQS) for PM-10.