# Air Plan Partial Approval and Partial Disapproval; AK, Fairbanks North Star Borough; 2006 24-Hour PM2.5 Serious Area and 189(d) Plan
> **Rule** · Final rule. · Published 2023-12-05 · Effective 2024-01-04 · 88 FR 84626
## Document
- **Document number:** 2023-26521
- **Category:** air-emissions
- **Federal Register citation:** 88 FR 84626
- **CFR reference:** 40 CFR 52
- **Publication date:** 2023-12-05
- **Effective date:** 2024-01-04
- **EPA docket:** EPA-R10-OAR-2022-0115
## Abstract

The Environmental Protection Agency (EPA) is approving in part and disapproving in part the State implementation plan (SIP) submissions, submitted by the State of Alaska (Alaska or the State) to address Clean Air Act (CAA or Act) requirements for the 2006 24-hour fine particulate matter (PM<INF>2.5</INF>) national ambient air quality standard (NAAQS) in the Fairbanks North Star Borough PM<INF>2.5</INF> nonattainment area (Fairbanks PM<INF>2.5</INF> Nonattainment Area). Alaska made these submissions on December 13, 2019, and December 15, 2020.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/12/05/2023-26521/air-plan-partial-approval-and-partial-disapproval-ak-fairbanks-north-star-borough-2006-24-hour-pm25)
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