# Establishment of Class D Airspace and Modification of Class E Airspace; Bozeman, MT
> **Rule** · Final rule. · Published 1999-03-22 · 64 FR 13671
## Document
- **Document number:** 99-6939
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 64 FR 13671
- **Publication date:** 1999-03-22
- **FAA docket:** Airspace Docket No. 98-ANM-19
## Abstract

This action establishes Class D surface airspace and modifies Class E surface airspace at Gallatin Field, Bozeman, MT. The Class D surface area is established to accommodate the procedures associated with the operation of a new Airport Traffic Control Tower (ATCT) at the airport. The modification of the Class E surface area amends the effective hours from continuous to part-time, the effective hours coinciding with the hours that the tower is closed. The effect of this action is to clarify when two-way radio communication with the ATCT is required and to provide adequate Class D airspace for procedures when the tower is open.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/03/22/99-6939/establishment-of-class-d-airspace-and-modification-of-class-e-airspace-bozeman-mt)
---
*AI Analytics · CC0 1.0*