# Approval and Promulgation of Implementation Plans Alabama: Volatile Organic Compounds
> **Rule** · Direct final rule. · Published 2014-06-10 · Effective 2014-08-11 · 79 FR 33116
## Document
- **Document number:** 2014-13428
- **Category:** air-emissions
- **Federal Register citation:** 79 FR 33116
- **CFR reference:** 40 CFR 52
- **Publication date:** 2014-06-10
- **Effective date:** 2014-08-11
- **State:** AL
- **EPA docket:** EPA-R04-OAR-2014-0311
## Abstract

The Environmental Protection Agency (EPA) is taking direct final action to approve a revision to the Alabama State Implementation Plan (SIP) submitted by the Alabama Department of Environmental Management (ADEM) on September 3, 2013. The revision modifies the definition of "volatile organic compounds" (VOCs). Specifically, the revision adds four hydrofluoropolyethers (HFPEs) compounds, to the list of those excluded from the VOC definition on the basis that these compounds make a negligible contribution to tropospheric ozone formation. ADEM is updating its SIP to be consistent with EPA rule finalized on February 12, 2013, which excludes these compounds from the regulatory VOC definition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2014/06/10/2014-13428/approval-and-promulgation-of-implementation-plans-alabama-volatile-organic-compounds)
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