federal_register: 2011-24644
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| 2011-24644 | Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; North Carolina: Redesignation of the Greensboro-Winston-Salem-High Point 1997 Annual Fine Particulate Matter Nonattainment Area to Attainment | Proposed Rule | EPA is proposing to approve SIP revisions submitted on December 18, 2009, and December 22, 2010 (supplemental submission) by the State of North Carolina, through the North Carolina Department of Environment and Natural Resources (NC DENR), Division of Air Quality (DAQ), to support North Carolina's request to redesignate the Greensboro-Winston-Salem-High Point fine particulate matter (PM<INF>2.5</INF>) nonattainment area (hereafter the "Greensboro Area" or "Area") to attainment for the 1997 Annual PM<INF>2.5</INF> National Ambient Air Quality Standards (NAAQS). The Greensboro Area is comprised of Davidson and Guilford Counties in their entireties. EPA is now proposing four separate but related actions. First, EPA is proposing to approve the December 18, 2009, PM<INF>2.5</INF> redesignation request, including the December 22, 2010, Motor Vehicle Emission Simulator (MOVES) mobile model supplement for the Greensboro Area, provided that EPA takes final action to approve specific provisions of the North Carolina Clean Smokestacks Act (NCCSA). Second, EPA is proposing to approve North Carolina's 2008 emissions inventory for the Greensboro Area under section 172(c)(3) of the Clean Air Act (CAA or Act). Third, subject to the same proviso regarding the NCCSA and final approval of the 2008 emissions inventory, EPA is proposing to approve the 1997 Annual PM<INF>2.5</INF> NAAQS maintenance plan for the Greensboro Area, including the 2008 baseline emissions inventory, and the motor vehicle emission budgets (MVEBs) for PM<INF>2.5</INF> and nitrogen oxides (NO<INF>X</INF>) for the years 2011 and 2021 for the Greensboro Area. EPA is also describing the status of its transportation conformity adequacy determination for the new 2011 and 2021 MVEBs for PM<INF>2.5</INF> and NO<INF>X</INF> that are contained in the 1997 Annual PM<INF>2.5</INF> NAAQS maintenance plan for the Greensboro Area. Fourth and separate from the action to redesignate the Area, EPA is proposing to determine that the Greensboro Area has attained the 1997 Annual PM<INF>2.5</INF> NAAQS by its applicable attainment date of April 5, 2010. These proposed actions are being taken pursuant to the CAA and its implementing regulations. | 2011-09-26 | 2011 | 9 | https://www.federalregister.gov/documents/2011/09/26/2011-24644/approval-and-promulgation-of-implementation-plans-and-designation-of-areas-for-air-quality-planning | https://www.govinfo.gov/content/pkg/FR-2011-09-26/pdf/2011-24644.pdf | Environmental Protection Agency | 145 | EPA is proposing to approve SIP revisions submitted on December 18, 2009, and December 22, 2010 (supplemental submission) by the State of North Carolina, through the North Carolina Department of Environment and Natural Resources (NC DENR), Division of... |