Approval and Promulgation of Implementation Plans; North Carolina Portion of the Charlotte-Gastonia-Rock Hill, North Carolina-South Carolina 1997 8-Hour Ozone Nonattainment Area; Reasonable Further Progress Plan

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EPA is proposing to approve state implementation plan revisions, submitted by the North Carolina Department of Environment and Natural Resources, on June 15, 2007, and November 30, 2009, to address the reasonable further progress (RFP) plan requirements for the 1997 8-hour ozone national ambient air quality standards (NAAQS) for the North Carolina portion of the bi-state Charlotte-Gastonia-Rock Hill 1997 8-hour ozone nonattainment area. The Charlotte-Gastonia-Rock Hill, North Carolina-South Carolina 1997 8-hour ozone nonattainment area (hereafter referred to as the "bi-state Charlotte Area") is comprised of Cabarrus, Gaston, Lincoln, Mecklenburg, Rowan, Union and a portion of Iredell (Davidson and Coddle Creek Townships) Counties in North Carolina; and a portion of York County in South Carolina. EPA is also providing the status of its adequacy determination for the motor vehicle emissions budgets (MVEB) for volatile organic compounds and nitrogen oxides that were included in North Carolina's RFP plan. Further, EPA is proposing to approve these MVEB. This proposed action is being taken pursuant to section 110 of the Clean Air Act. EPA will take action on South Carolina's RFP plan fo