On December 10, 2015, the State of Arkansas, through the Arkansas Department of Environment Quality (ADEQ), submitted a request for the Environmental Protection Agency (EPA) to redesignate the portion of Arkansas that is within the Memphis, Tennessee-Mississippi- Arkansas (Memphis, TN-MS-AR) 2008 8-hour ozone nonattainment area (hereafter referred to as the "Memphis, TN-MS-AR Area" or "Area") and to approve a State Implementation Plan (SIP) revision containing a maintenance plan for the Area. EPA has determined that the Memphis, TN- MS-AR Area is attaining the 2008 8-hour ozone national ambient air quality standards (NAAQS); is approving the State's plan for maintaining attainment of the 2008 8-hour ozone NAAQS in the Area, including the motor vehicle emission budgets (MVEBs) for nitrogen oxides (NO<INF>X</INF>) and volatile organic compounds (VOC) for the years 2012 and 2027 for the Arkansas portion of the Area, into the SIP; and is redesignating the Arkansas 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 MVEBs for the Arkansas portion of the Memphis, TN-MS-AR Area.