Approval and Promulgation of Implementation Plans and Designation of Areas for Air Quality Planning Purposes; South Carolina; Redesignation of the Charlotte-Gastonia-Rock Hill, North Carolina-South Carolina 1997 8-Hour Ozone Moderate Nonattainment Area to Attainment

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EPA is taking final action to approve a request submitted on June 1, 2011, from the State of South Carolina, through the South Carolina Department of Health and Environmental Control (SC DHEC), to redesignate the portion of York County, South Carolina that is within the bi-state Charlotte-Gastonia-Rock Hill, North Carolina-South Carolina ozone nonattainment area (hereafter referred to as the "bi- state Charlotte Area," or "Area") to attainment for the 1997 8-hour ozone National Ambient Air Quality Standards (NAAQS). The bi-state Charlotte Area consists of Cabarrus, Gaston, Lincoln, Mecklenburg, Rowan, Union and a portion of Iredell County (Davidson and Coddle Creek Townships) in North Carolina; and a portion of York County in South Carolina, including the Catawba Indian Nation reservation lands (hereafter referred to as "the York County Area"). EPA's approval of the redesignation request is based on the determination that South Carolina has met the criteria for redesignation to attainment set forth in the Clean Air Act (CAA or Act). Additionally, EPA is approving a revision to the South Carolina State Implementation Plan (SIP) to include the 1997 8-hour ozone maintenance plan for t