Air Plan Approval and Designation of Areas; KY; Redesignation of the Kentucky Portion of the Cincinnati-Hamilton 2008 8-Hour Ozone Nonattainment Area to Attainment

On August 26, 2016, the Commonwealth of Kentucky, through the Kentucky Energy and Environment Cabinet, Division for Air Quality (DAQ), submitted a request for the Environmental Protection Agency (EPA) to redesignate the Kentucky portion of the tri-state Cincinnati- Hamilton, Ohio-Kentucky-Indiana 2008 8-hour ozone nonattainment area (hereinafter referred to as the "Cincinnati-Hamilton, OH-KY-IN Area" or "Area") to attainment for the 2008 8-hour ozone National Ambient Air Quality Standards (NAAQS) and to approve the portions of the State Implementation Plan (SIP) revision containing a maintenance plan and base year emissions inventory for the Area. EPA is taking final action to approve the Commonwealth's base year emissions inventory for the Kentucky portion of the Area; to approve the Commonwealth's plan for maintaining attainment of the 2008 8-hour ozone NAAQS in the Area, including motor vehicle emission budgets (MVEBs) for nitrogen oxides (NO<INF>X</INF>) and volatile organic compounds (VOC) for the years 2020 and 2030 for the Kentucky portion of the Area; and to redesignate the Kentucky portion of the Area to attainment for the 2008 8-hour ozone NAAQS. Through separate actions, EPA has approved the redesignation requests and maintenance plans for both the Ohio and Indiana portions of the Area.