# Approval and Promulgation of Implementation Plans; AR; Redesignation of the Crittenden County, 2008 8-Hour Ozone Nonattainment Area to Attainment
> **Rule** · Final rule. · Published 2016-04-25 · Effective 2016-05-25 · 81 FR 24030
## Document
- **Document number:** 2016-09451
- **Category:** air-emissions
- **Federal Register citation:** 81 FR 24030
- **CFR reference:** 40 CFR 52
- **Publication date:** 2016-04-25
- **Effective date:** 2016-05-25
- **EPA docket:** EPA-R06-OAR-2015-0852
## Abstract

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.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/04/25/2016-09451/approval-and-promulgation-of-implementation-plans-ar-redesignation-of-the-crittenden-county-2008)
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