# Amendments to Restricted Areas 5601D and 5601E; Fort Sill, OK
> **Rule** · Final rule. · Published 1999-01-29 · 64 FR 4534
## Document
- **Document number:** 99-2136
- **Category:** other
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 64 FR 4534
- **Publication date:** 1999-01-29
- **FAA docket:** Airspace Docket No. 96-ASW-40
## Abstract

This action raises the upper limit of Restricted Area 5601D (R-5601D) from the current 16,500 feet mean sea level (MSL) to Flight Level (FL) 400. Additionally, this action amends the times and days of designation for R-5601D and R-5601E when these areas may be activated without a prior issuance of a Notice to Airmen (NOTAM). These changes are necessary to accommodate high altitude/high angle bomb delivery training and to support weekday and night flying requirements.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1999/01/29/99-2136/amendments-to-restricted-areas-5601d-and-5601e-fort-sill-ok)
---
*AI Analytics · CC0 1.0*