# Modification of Class E Airspace; Forsyth, MT
> **Rule** · Final rule. · Published 2011-08-05 · Effective 2011-10-20 · 76 FR 47435
## Document
- **Document number:** 2011-19742
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 76 FR 47435
- **Publication date:** 2011-08-05
- **Effective date:** 2011-10-20
- **FAA docket:** Docket No. FAA-2011-0516
## Abstract

This action will modify Class E airspace at Forsyth, MT. Controlled airspace is necessary to accommodate aircraft using Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Tillitt Field Airport. This action also corrects a typographical error in the regulatory text for the Class E airspace area. This action improves the safety and management of Instrument Flight Rules (IFR) operations at the airport.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/08/05/2011-19742/modification-of-class-e-airspace-forsyth-mt)
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