# Establishment of Class E Airspace; Ten Sleep, WY
> **Rule** · Final rule. · Published 2009-04-08 · Effective 2009-07-02 · 74 FR 15842
## Document
- **Document number:** E9-7900
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 74 FR 15842
- **Publication date:** 2009-04-08
- **Effective date:** 2009-07-02
- **FAA docket:** Docket No. FAA-2008-1129
## Abstract

This action will establish Class E airspace at Ten Sleep, WY. Additional controlled airspace is necessary to accommodate aircraft using a new Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedure (SIAP) at Red Reflet Ranch Airport, Ten Sleep, WY. This will improve the safety of Instrument Flight Rules (IFR) aircraft executing the new RNAV GPS SIAP at Red Reflet Ranch Airport, Ten Sleep, WY.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2009/04/08/E9-7900/establishment-of-class-e-airspace-ten-sleep-wy)
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