# Approval and Promulgation of Implementation Plans; Arkansas; Revisions to the Definitions for Arkansas Plan of Implementation for Air Pollution Control: Volatile Organic Compounds
> **Rule** · Direct final rule. · Published 2017-12-21 · Effective 2018-03-21 · 82 FR 60517
## Document
- **Document number:** 2017-27458
- **Category:** air-emissions
- **Federal Register citation:** 82 FR 60517
- **CFR reference:** 40 CFR 52
- **Publication date:** 2017-12-21
- **Effective date:** 2018-03-21
- **State:** AR
- **EPA docket:** EPA-R06-OAR-2017-0699
## Abstract

The Environmental Protection Agency (EPA) is approving a portion of the revision to the Arkansas State Implementation Plan (SIP) submitted by Arkansas Department of Environmental Quality (ADEQ) on March 24, 2017. The revision updates the definition of "volatile organic compounds" (VOC). Specifically, the submitted revision will incorporate the EPA's latest definition of VOC on the basis that these compounds make negligible contribution to tropospheric ozone formation. This action is being taken pursuant to the Clean Air Act (CAA or Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/12/21/2017-27458/approval-and-promulgation-of-implementation-plans-arkansas-revisions-to-the-definitions-for-arkansas)
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