# Approval and Promulgation of State Implementation Plans; Wyoming; Revision to Section 3 Particulates
> **Rule** · Final rule. · Published 1995-09-12 · Effective 1995-10-12 · 60 FR 47290
## Document
- **Document number:** 95-22149
- **Category:** air-emissions
- **Federal Register citation:** 60 FR 47290
- **CFR reference:** 40 CFR 52
- **Publication date:** 1995-09-12
- **Effective date:** 1995-10-12
- **State:** WY
- **EPA docket:** WY2-1-7126
## Abstract

In this action, EPA is approving a revision of the Wyoming State Implementation Plan (SIP) submitted by the Governor of Wyoming on September 6, 1988. Specifically, a revision was made to the definition of ``ambient air'' in Section 3, Particulates, of the Wyoming Air Quality Standards and Regulations (WAQSR). The action makes the revised definition part of the Federally approved SIP.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1995/09/12/95-22149/approval-and-promulgation-of-state-implementation-plans-wyoming-revision-to-section-3-particulates)
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