# Air Plan Revisions; California; San Diego County Air Pollution Control District
> **Rule** · Final rule. · Published 2024-09-20 · Effective 2024-10-21 · 89 FR 77023
## Document
- **Document number:** 2024-21494
- **Category:** air-emissions
- **Federal Register citation:** 89 FR 77023
- **CFR reference:** 40 CFR 52
- **Publication date:** 2024-09-20
- **Effective date:** 2024-10-21
- **State:** CA
- **EPA docket:** EPA-R09-OAR-2024-0032
## Abstract

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the San Diego County Air Pollution Control District (SDCAPCD) portion of the California State Implementation Plan (SIP). This revision concerns a rule submitted to address section 185 of the Clean Air Act (CAA or "Act").

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2024/09/20/2024-21494/air-plan-revisions-california-san-diego-county-air-pollution-control-district)
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