# Air Plan Approval; Arizona; Bullhead City; Second 10-Year PM10 Limited Maintenance Plan
> **Rule** · Final rule. · Published 2022-04-14 · Effective 2022-05-16 · 87 FR 22132
## Document
- **Document number:** 2022-07907
- **Category:** air-emissions
- **Federal Register citation:** 87 FR 22132
- **CFR reference:** 40 CFR 52
- **Publication date:** 2022-04-14
- **Effective date:** 2022-05-16
- **State:** AZ
- **EPA docket:** EPA-R09-OAR-2021-0819
## Abstract

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the Bullhead City portion of the Arizona State Implementation Plan (SIP). These revisions concern the second 10-year maintenance plan for the Bullhead City area for the 1987 national ambient air quality standards (NAAQS or "standards") for particulate matter less than 10 micrometers in diameter (PM<INF>10</INF>).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/04/14/2022-07907/air-plan-approval-arizona-bullhead-city-second-10-year-pm10-limited-maintenance-plan)
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