# Amendment of Class D Airspace; Sault Ste Marie, ON
> **Rule** · Final rule. · Published 2012-08-17 · Effective 2012-11-15 · 77 FR 49719
## Document
- **Document number:** 2012-20138
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 49719
- **Publication date:** 2012-08-17
- **Effective date:** 2012-11-15
- **FAA docket:** Docket No. FAA-2012-0392
## Abstract

This action amends Class D airspace at Sault Ste Marie, ON. Additional controlled airspace is necessary to coincide with the Canadian control zone over Sault Ste Marie Airport. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at the airport.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/08/17/2012-20138/amendment-of-class-d-airspace-sault-ste-marie-on)
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