# Modification of Class E Airspace; Ralph M. Calhoun Memorial Airport, Tanana, AK
> **Rule** · Final rule. · Published 2023-09-15 · Effective 2023-11-30 · 88 FR 63516
## Document
- **Document number:** 2023-19295
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 88 FR 63516
- **Publication date:** 2023-09-15
- **Effective date:** 2023-11-30
- **FAA docket:** Docket No. FAA-2022-1471
## Abstract

This action modifies the Class E airspace designated as a surface area and modifies the Class E airspace extending upward from 700 feet above the surface at Ralph M. Calhoun Memorial Airport, Tanana, AK. Additionally, this action updates the administrative portion of the airport's Class E airspace legal descriptions. These modifications support the safety and management of instrument flight rules (IFR) operations at the airport.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/09/15/2023-19295/modification-of-class-e-airspace-ralph-m-calhoun-memorial-airport-tanana-ak)
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