# Air Plan Approval; ID; Revisions to Air Quality Regulations
> **Rule** · Final rule. · Published 2024-12-05 · Effective 2025-01-06 · 89 FR 96554
## Document
- **Document number:** 2024-28364
- **Category:** air-emissions
- **Federal Register citation:** 89 FR 96554
- **CFR reference:** 40 CFR 52
- **Publication date:** 2024-12-05
- **Effective date:** 2025-01-06
- **EPA docket:** EPA-R10-OAR-2023-0583, FRL-11575-03-R10
## Abstract

The Environmental Protection Agency (EPA) is approving revisions to the Idaho State Implementation Plan (SIP) submitted on May 8, 2023, and May 13, 2024. The revisions update the adoption by reference of specific Federal standards and reference methods and streamline the Idaho air quality regulations by repealing outdated provisions, striking duplicative terms, and simplifying rule language.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2024/12/05/2024-28364/air-plan-approval-id-revisions-to-air-quality-regulations)
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