# Revision of Class E Airspace; Tanana, AK
> **Rule** · Final rule. · Published 2010-10-12 · Effective 2010-11-18 · 75 FR 62458
## Document
- **Document number:** 2010-25480
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 75 FR 62458
- **Publication date:** 2010-10-12
- **Effective date:** 2010-11-18
- **FAA docket:** Docket No. FAA-2010-0588 Airspace Docket No. 10-AAL-16
## Abstract

This action revises Class E airspace at Tanana, AK. The amendment of Standard Instrument Approach Procedures (SIAPs) at Ralph M. Calhoun Memorial Airport has made this action necessary to enhance safety by ensuring that sufficient airspace exists for air traffic management of Instrument Flight Rules (IFR) operations.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/10/12/2010-25480/revision-of-class-e-airspace-tanana-ak)
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