# Modification of Class E Airspace; Plentywood, MT
> **Rule** · Final rule. · Published 2012-07-13 · Effective 2012-09-20 · 77 FR 41259
## Document
- **Document number:** 2012-16946
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 41259
- **Publication date:** 2012-07-13
- **Effective date:** 2012-09-20
- **FAA docket:** Docket No. FAA-2012-0310
## Abstract

This action modifies Class E airspace at Plentywood Sher-Wood Airport, Plentywood, MT. Controlled airspace is necessary to accommodate aircraft using Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Plentywood Sher-Wood Airport. This improves the safety and management of Instrument Flight Rules (IFR) operations at the airport. This action also makes a minor adjustment to the geographic coordinates of the airport.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/07/13/2012-16946/modification-of-class-e-airspace-plentywood-mt)
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