# Air Plan Approval; Alabama: Air Quality Control, VOC Definition
> **Rule** · Final rule. · Published 2020-09-21 · Effective 2020-10-21 · 85 FR 59192
## Document
- **Document number:** 2020-18107
- **Category:** air-emissions
- **Federal Register citation:** 85 FR 59192
- **CFR reference:** 40 CFR 52
- **Publication date:** 2020-09-21
- **Effective date:** 2020-10-21
- **State:** AL
- **EPA docket:** EPA-R04-OAR-2020-0170
## Abstract

The Environmental Protection Agency (EPA) is approving a State Implementation Plan (SIP) revision submitted by the State of Alabama, through the Alabama Department of Environmental Management (ADEM), in a letter dated February 27, 2020. The revision modifies the State's air quality regulations as incorporated into the SIP by changing the definition of "volatile organic compounds" (VOC) to be consistent with federal regulations. EPA is approving this SIP revision because the State has demonstrated that these changes are consistent with the Clean Air Act (CAA or Act).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/09/21/2020-18107/air-plan-approval-alabama-air-quality-control-voc-definition)
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