# Air Plan Approval; Michigan; Part 4 Rule
> **Rule** · Final rule. · Published 2023-04-24 · Effective 2023-05-24 · 88 FR 24691
## Document
- **Document number:** 2023-08484
- **Category:** other
- **Federal Register citation:** 88 FR 24691
- **CFR reference:** 40 CFR 52
- **Publication date:** 2023-04-24
- **Effective date:** 2023-05-24
- **State:** MI
- **EPA docket:** EPA-R05-OAR-2022-0728
## Abstract

The Environmental Protection Agency (EPA) is approving a revision to Michigan's State Implementation Plan (SIP). The Michigan Department of Environment, Great Lakes, and Energy (EGLE) submitted on August 17, 2022, changes to Michigan's Air Pollution Control Rules, Emissions Limitations and Prohibitions--Sulfur Bearing Compounds. The revision includes administrative changes to existing rules and updates to material adopted by reference.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/04/24/2023-08484/air-plan-approval-michigan-part-4-rule)
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