# Air Plan Approval; Arizona; Maricopa County Air Quality Department; Correction
> **Rule** · Correcting amendments. · Published 2025-06-11 · Effective 2025-06-11 · 90 FR 24514
## Document
- **Document number:** 2025-10541
- **Category:** air-emissions
- **Federal Register citation:** 90 FR 24514
- **CFR reference:** 40 CFR 52
- **Publication date:** 2025-06-11
- **Effective date:** 2025-06-11
- **State:** AZ
- **EPA docket:** EPA-R09-OAR-2022-0607
## Abstract

On January 16, 2025, the Environmental Protection Agency (EPA) published a final rule in the Federal Register approving revisions to the Maricopa County Air Quality Department (MCAQD or "County") portion of the Arizona State Implementation Plan (SIP). In that rulemaking, the EPA inadvertently published numbering errors in the regulatory text codifying the approval in the Code of Federal Regulations (CFR). This document corrects the errors in the final rule's regulatory text.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2025/06/11/2025-10541/air-plan-approval-arizona-maricopa-county-air-quality-department-correction)
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