# Amendment of Class E Airspace; Miles City, MT
> **Rule** · Final rule. · Published 2011-09-16 · Effective 2011-12-15 · 76 FR 57633
## Document
- **Document number:** 2011-23693
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 76 FR 57633
- **Publication date:** 2011-09-16
- **Effective date:** 2011-12-15
- **FAA docket:** Docket No. FAA-2011-0515
## Abstract

This action modifies Class E airspace at Miles City, MT, to accommodate aircraft using a new Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Frank Wiley Field. Additionally, the geographic coordinates for Frank Wiley Field are being adjusted. This improves the safety and management of Instrument Flight Rules (IFR) operations at the airport.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/09/16/2011-23693/amendment-of-class-e-airspace-miles-city-mt)
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