# Establishment of Class E Airspace; Ada, MN
> **Rule** · Final rule. · Published 1999-02-23 · 64 FR 8714
## Document
- **Document number:** 99-4337
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 64 FR 8714
- **Publication date:** 1999-02-23
- **FAA docket:** Airspace Docket No. 98-AGL-63
## Abstract

This action establishes Class E airspace at Ada, MN. A Global Positioning System (GPS) Standard Instrument Approach Procedure (SIAP) to Runway (Rwy) 33 has been developed for Norman County Ada/Twin Valley Airport. Controlled airspace extending upward from 700 to 1200 feet above ground level (AGL) is needed to contain aircraft executing the approach. This action creates controlled airspace with a 6.3-mile radius for Norman County Ada/Twin Valley Airport.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/02/23/99-4337/establishment-of-class-e-airspace-ada-mn)
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