# Amendment and Establishment of Multiple Air Traffic Service Routes; Western United States
> **Rule** · Final rule. · Published 2020-12-14 · Effective 2021-02-25 · 85 FR 80598
## Document
- **Document number:** 2020-27339
- **Category:** other
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 85 FR 80598
- **Publication date:** 2020-12-14
- **Effective date:** 2021-02-25
- **FAA docket:** Docket No. FAA-2019-0660
## Abstract

This action modifies two high altitude United States Area Navigation (RNAV) Air Traffic Service (ATS) routes (Q-13 and Q-15), establishes one high altitude RNAV ATS route (Q-174), and establishes five low altitude RNAV ATS routes (T-338, T-357, T-359, T-361, and T- 363) in the western United States. These Q and T routes facilitate the movement of aircraft to, from, and through the Las Vegas terminal area. Additionally, the routes promote operational efficiencies for users and provide connectivity to RNAV enroute procedures while enhancing capacity for adjacent airports.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/12/14/2020-27339/amendment-and-establishment-of-multiple-air-traffic-service-routes-western-united-states)
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