# Establishment of Class E Airspace; Circle Town, MT
> **Rule** · Final rule. · Published 2012-09-11 · Effective 2012-11-15 · 77 FR 55691
## Document
- **Document number:** 2012-22270
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 55691
- **Publication date:** 2012-09-11
- **Effective date:** 2012-11-15
- **FAA docket:** Docket No. FAA-2012-0539
## Abstract

This action establishes Class E airspace at Circle Town County Airport, Circle Town, MT to accommodate aircraft using new Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Circle Town County Airport. This improves the safety and management of Instrument Flight Rules (IFR) operations at the airport.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/09/11/2012-22270/establishment-of-class-e-airspace-circle-town-mt)
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