# Air Plan Approval; ID, Incorporation by Reference Updates and Rule Revisions
> **Rule** · Final rule. · Published 2020-11-19 · Effective 2020-12-21 · 85 FR 73632
## Document
- **Document number:** 2020-24692
- **Category:** air-emissions
- **Federal Register citation:** 85 FR 73632
- **CFR reference:** 40 CFR 52
- **Publication date:** 2020-11-19
- **Effective date:** 2020-12-21
- **EPA docket:** EPA-R10-OAR-2019-0401
## Abstract

The Environmental Protection Agency (EPA) is approving the State Implementation Plan (SIP) revisions submitted by Idaho on June 5, 2019 and May 27, 2020. The submitted revisions update the incorporation by reference of specific Federal requirements and clarify source permitting requirements. The EPA finds that the changes are consistent with Clean Air Act requirements.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/11/19/2020-24692/air-plan-approval-id-incorporation-by-reference-updates-and-rule-revisions)
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