# Revision of Class E Airspace; Kalispell, MT
> **Rule** · Final rule. · Published 2004-04-13 · 69 FR 19317
## Document
- **Document number:** 04-8361
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 69 FR 19317
- **Publication date:** 2004-04-13
- **FAA docket:** Docket No. FAA 2003-16214
## Abstract

This final rule will revise Class E airspace at Kalispell, MT. An increase in Area Navigation (RNAV) Global Position System (GPS) Standard Instrument Approach procedures (SIAP) operations at Glacier Park International Airport, Kalispell, MT, makes it necessary to increase the area controlled airspace. This additional controlled airspace extending upward from 1,200 feet above the surface of the earth is necessary for the containment and safety of Instrument Flight Rules (IFR) aircraft transitioning to/from the en route environment and executing these SIAP procedures.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/04/13/04-8361/revision-of-class-e-airspace-kalispell-mt)
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