# Instrument Flight Rule Altitudes in Designated Mountainous Areas
> **Rule** · Final rule; technical amendment. · Published 2008-10-28 · Effective 2008-10-28 · 73 FR 63885
## Document
- **Document number:** E8-25692
- **Category:** other
- **Type:** Rule
- **Action:** Final rule; technical amendment.
- **Citation:** 73 FR 63885
- **Publication date:** 2008-10-28
- **Effective date:** 2008-10-28
## Abstract

The FAA is amending its regulations concerning the use of instrument flight rule (IFR) altitudes. Specifically, a duplicate coordinate in the description of the Eastern United States Mountainous Area is being removed.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2008/10/28/E8-25692/instrument-flight-rule-altitudes-in-designated-mountainous-areas)
---
*AI Analytics · CC0 1.0*