Approval and Promulgation of Implementation Plans; Mississippi; Memphis, TN-MS-AR Emissions Statements for the 2008 8-Hour Ozone Standard

The Environmental Protection Agency (EPA) is proposing to approve a draft state implementation plan (SIP) revision submitted by the State of Mississippi, through the Mississippi Department of Environmental Quality (MDEQ) on June 1, 2015, for parallel processing, to address the emissions statement requirements for the State's portion of the Memphis, Tennessee-Mississippi-Arkansas (Memphis, TN-MS-AR) 2008 8-hour ozone national ambient air quality standards (NAAQS) nonattainment area (hereafter referred to as the ``Memphis, TN-MS-AR Area'' or ``Area''). Annual emissions reporting (i.e., emissions statements) is required for all ozone nonattainment areas. The Area is comprised of Shelby County in Tennessee, Crittenden County in Arkansas, and a portion of DeSoto County in Mississippi. In a separate action, EPA approved Tennessee's regulations addressing emissions statements for its portion of the Memphis, TN-MS-AR Area. EPA will consider and take action on the emissions statements requirements for the Arkansas portion of this Area in a separate action. This proposed action is being taken pursuant to the Clean Air Act (CAA or Act) and its implementing regulations.