Approval and Promulgation of Implementation Plans and Designation of Areas; North Carolina; Redesignation of the Charlotte-Rock Hill, 2008 8-Hour Ozone Nonattainment Area to Attainment

On April 16, 2015, the State of North Carolina, through the North Carolina Department of Environment and Natural Resources, Department of Air Quality (NC DAQ), submitted a request for the Environmental Protection Agency (EPA) to redesignate the portion of North Carolina that is within the bi-state Charlotte-Rock Hill, North Carolina-South Carolina 8-hour ozone nonattainment area (hereafter referred to as the ``bi-state Charlotte Area,'' or ``Area'') to attainment for the 2008 8-hour ozone National Ambient Air Quality Standards (NAAQS) and to approve a State Implementation Plan (SIP) revision containing a maintenance plan for the Area. EPA is proposing to determine that the bi-State Charlotte Area is attaining the 2008 8- hour ozone NAAQS; to approve the State's plan for maintaining attainment of the 2008 8-hour ozone standard in the Area, including the sub-area motor vehicle emission budgets (MVEBs) for nitrogen oxides (NOX) and volatile organic compounds (VOC) for the years 2014 and 2026 for North Carolina portion of the Area, into the SIP; and to redesignate the North Carolina portion of the Area to attainment for the 2008 8-hour ozone NAAQS. EPA is also notifying the public of the status of EPA's adequacy determination for the sub-area MVEBs for the North Carolina portion of the bi-state Charlotte Area.