2016-02725: Air Plan Approval and Designation of Areas; MS; Redesignation of the DeSoto County, 2008 8-Hour Ozone Nonattainment Area to Attainment

Summary

On December 11, 2015, the State of Mississippi, through the Mississippi Department of Environment Quality (MDEQ), submitted a request for the Environmental Protection Agency (EPA) to redesignate the portion of Mississippi 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 is proposing to determine that the Memphis, TN-MS-AR Area is attaining the 2008 8-hour ozone national ambient air quality standards (NAAQS); to approve 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 year 2027 for the Mississippi portion of the Area, into the SIP; and to redesignate the Mississippi 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 Mississippi portion of the Memphis, TN-MS-AR Area.

The agency’s own summary, as published.

What this changes

Amends 2 parts of the Code of Federal Regulations — the standing rules this notice rewrites.

• 40 CFR 52 Approval and Promulgation of Implementation Plans
• 40 CFR 81 Designation of Areas for Air Quality Planning Purposes