# Approval and Promulgation of State Implementation Plans; Michigan
> **Rule** · Final rule. · Published 2004-02-09 · Effective 2004-03-10 · 69 FR 5932
## Document
- **Document number:** 04-2621
- **Category:** air-emissions
- **Federal Register citation:** 69 FR 5932
- **CFR reference:** 40 CFR 52
- **Publication date:** 2004-02-09
- **Effective date:** 2004-03-10
- **State:** MI
- **EPA docket:** MI83-03
## 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. On September 2, 2003, the EPA proposed approval of this SIP revision and published a direct final approval as well. EPA received adverse comments on the proposed rulemaking, and therefore withdrew the direct final rulemaking on October 31, 2003.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/02/09/04-2621/approval-and-promulgation-of-state-implementation-plans-michigan)
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