# Establishment of Class E Airspace, Twin Bridges, MT
> **Rule** · Final rule. · Published 2017-12-06 · Effective 2018-02-01 · 82 FR 57541
## Document
- **Document number:** 2017-26202
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 82 FR 57541
- **Publication date:** 2017-12-06
- **Effective date:** 2018-02-01
- **FAA docket:** Docket No. FAA-2017-0737
## Abstract

This action establishes Class E airspace extending upward from 700 and 1,200 feet above the surface at Twin Bridges Airport, Twin Bridges, MT, to accommodate the development of instrument flight rules (IFR) operations under standard instrument approach and departure procedures at the airport, for the safety and management of aircraft within the National Airspace System. This action also makes a minor correction to one geographic coordinate of the airport reference point.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/12/06/2017-26202/establishment-of-class-e-airspace-twin-bridges-mt)
---
*AI Analytics · CC0 1.0*