# Approval and Disapproval and Promulgation of State Implementation Plan Revisions; Infrastructure Requirements for the 1997 8-Hour Ozone National Ambient Air Quality Standard; Wyoming
> **Rule** · Final rule. · Published 2011-07-25 · Effective 2011-08-24 · 76 FR 44265
## Document
- **Document number:** 2011-18423
- **Category:** air-emissions
- **Federal Register citation:** 76 FR 44265
- **CFR reference:** 40 CFR 52
- **Publication date:** 2011-07-25
- **Effective date:** 2011-08-24
- **State:** WY
- **EPA docket:** EPA-R08-OAR-2010-0303
## Abstract

EPA is partially approving and partially disapproving the

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/07/25/2011-18423/approval-and-disapproval-and-promulgation-of-state-implementation-plan-revisions-infrastructure)
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