# Air Plan Approval; Minnesota; Exempt Source SIP Revision
> **Rule** · Final rule. · Published 2025-11-20 · Effective 2025-12-22 · 90 FR 52245
## Document
- **Document number:** 2025-20492
- **Category:** air-emissions
- **Federal Register citation:** 90 FR 52245
- **CFR reference:** 40 CFR 52
- **Publication date:** 2025-11-20
- **Effective date:** 2025-12-22
- **State:** MN
- **EPA docket:** EPA-R05-OAR-2021-0684
## Abstract

The Environmental Protection Agency (EPA) is approving a revision to the Minnesota State Implementation Plan (SIP) with updates to Minnesota's air program rules. The Minnesota Pollution Control Agency (MPCA) submitted the request to EPA on October 1, 2021. The revision to Minnesota's air quality rules reflects changes that have occurred since July 2020. EPA proposed to approve this submittal, which will result in consistent requirements of rules at both the State and Federal level, on July 16, 2025, and received no adverse comments.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/11/20/2025-20492/air-plan-approval-minnesota-exempt-source-sip-revision)
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