# Modification of Class E Airspace; Detroit, MI
> **Rule** · Final rule. · Published 1999-04-26 · 64 FR 20161
## Document
- **Document number:** 99-10437
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 64 FR 20161
- **Publication date:** 1999-04-26
- **FAA docket:** Airspace Docket No. 99-AGL-8
## Abstract

This notice modifies Class E airspace at Detroit, MI. A Global Positioning System (GPS) Standard Instrument Approach Procedure (SIAP), 008 deg. helicopter point in space approach, has been developed for Port Huron Hospital Heliport, Port Huron, MI. Controlled airspace extending upward from 700 to 1200 feet above ground level (AGL) is needed to contain aircraft executing the approach. This action proposes to modify existing controlled airspace for Detroit, MI, in order to include the point in space approach serving Port Huron Hospital Heliport.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/04/26/99-10437/modification-of-class-e-airspace-detroit-mi)
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