# Approval and Promulgation of Air Quality Implementation Plans; Wyoming; Restructuring and Renumbering of Wyoming Air Quality Standards and Regulations
> **Rule** · Final rule. · Published 2004-07-28 · Effective 2004-08-27 · 69 FR 44965
## Document
- **Document number:** 04-17167
- **Category:** air-emissions
- **Federal Register citation:** 69 FR 44965
- **CFR reference:** 40 CFR 52
- **Publication date:** 2004-07-28
- **Effective date:** 2004-08-27
- **State:** WY
- **EPA docket:** SIP NO. WY-001-0013, FRL-7784-8
## Abstract

EPA is approving the State Implementation Plan (SIP) revision submitted by the State of Wyoming on September 12, 2003. The revision restructures the Wyoming Air Quality Standards and Regulations (WAQS&R) from a single chapter into thirteen separate chapters and renumbers the provisions within each chapter. The submitted revision contains no substantive changes to the existing SIP-approved regulations. The intended effect of this action is to make federally enforceable the restructured WAQS&R. This action is being taken under section 110 of the Clean Air Act.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/07/28/04-17167/approval-and-promulgation-of-air-quality-implementation-plans-wyoming-restructuring-and-renumbering)
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