# Establishment of Class E Airspace; Great Falls, MT
> **Rule** · Final rule. · Published 2021-06-30 · Effective 2021-10-07 · 86 FR 34625
## Document
- **Document number:** 2021-13890
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 86 FR 34625
- **Publication date:** 2021-06-30
- **Effective date:** 2021-10-07
- **FAA docket:** Docket No. FAA-2021-0209
## Abstract

This action establishes Class E domestic en route airspace extending upward from 1,200 feet above the surface at Great Falls, MT. This airspace facilitates vectoring of Instrument Flight Rules (IFR) aircraft and it properly contains IFR aircraft operating on direct routes under the control of Salt Lake City Air Route Traffic Control Center (ARTCC).

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/06/30/2021-13890/establishment-of-class-e-airspace-great-falls-mt)
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