# Establishment of Area Navigation Routes; Southwestern and South Central United States
> **Rule** · Final rule. · Published 2005-12-15 · Effective 2006-02-16 · 70 FR 74197
## Document
- **Document number:** 05-24069
- **Category:** other
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 70 FR 74197
- **Publication date:** 2005-12-15
- **Effective date:** 2006-02-16
- **FAA docket:** Docket No. FAA-2005-21381
## Abstract

This action establishes three area navigation (RNAV) routes over Southwestern and South Central United States in support of the High Altitude Redesign (HAR) program. The FAA is taking this action to enhance safety and to improve the efficient use of the navigable airspace.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2005/12/15/05-24069/establishment-of-area-navigation-routes-southwestern-and-south-central-united-states)
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