# Approval and Promulgation of Air Quality Implementation Plans; Michigan; Definition of Volatile Organic Compound
> **Rule** · Direct final rule. · Published 2003-09-02 · Effective 2003-11-03 · 68 FR 52104
## Document
- **Document number:** 03-22155
- **Category:** air-emissions
- **Federal Register citation:** 68 FR 52104
- **CFR reference:** 40 CFR 52
- **Publication date:** 2003-09-02
- **Effective date:** 2003-11-03
- **State:** MI
- **EPA docket:** MI83-01-7292a, FRL-7526-9
## Abstract

The EPA is approving a revision to Michigan's definition of volatile organic compound (VOC). EPA's approval will revise Michigan's State Implementation Plan (SIP) for ozone. The Michigan Department of Environmental Quality (MDEQ) submitted this SIP revision on April 25, 2003.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/09/02/03-22155/approval-and-promulgation-of-air-quality-implementation-plans-michigan-definition-of-volatile)
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