# Modification of Class E Airspace; Ralph Wien Memorial Airport, Kotzebue, AK
> **Rule** · Final rule. · Published 2026-06-24 · Effective 2026-09-03 · 91 FR 37787
## Document
- **Document number:** 2026-12674
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 91 FR 37787
- **Publication date:** 2026-06-24
- **Effective date:** 2026-09-03
- **FAA docket:** Docket No. FAA-2025-2423
## Abstract

This action modifies the Class E airspace area designated as a surface area (Class E2 airspace) and Class E airspace extending upward from 700 feet above the surface (Class E5 airspace) to optimize instrument flight procedure containment at the Ralph Wien Memorial Airport, Kotzebue, AK. This action supports the safety and management of instrument flight rules (IFR) operations at the airport.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/06/24/2026-12674/modification-of-class-e-airspace-ralph-wien-memorial-airport-kotzebue-ak)
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