# Establishment of Class D and E Airspace; Frederick, MD
> **Rule** · Final rule. · Published 2011-12-02 · Effective 2012-02-09 · 76 FR 75448
## Document
- **Document number:** 2011-30940
- **Category:** airspace
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 76 FR 75448
- **Publication date:** 2011-12-02
- **Effective date:** 2012-02-09
- **FAA docket:** Docket No. FAA-2011-0455
## Abstract

This action establishes Class D and E airspace at Frederick, MD, to accommodate new Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedures (SIAPs) at Frederick Municipal Airport. This action enhances the safety and management of Instrument Flight Rules (IFR) operations for SIAPs at the airport.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/12/02/2011-30940/establishment-of-class-d-and-e-airspace-frederick-md)
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