# Aviation Services
> **Federal Communications Commission** · Final rule. · Published 2013-10-03 · Effective 2013-11-04 · 78 FR 61203
## Document
- **Document number:** 2013-22500
- **Category:** spectrum-allocation
- **Federal Register citation:** 78 FR 61203
- **CFR reference:** 47 CFR 87
- **Publication date:** 2013-10-03
- **Effective date:** 2013-11-04
- **FCC docket:** WT Docket Nos. 10-61 and 09-42, RM-11503, RM-11596
## Abstract

In this document, the Federal Communications Commission (Commission) amends its rules to authorize the use of frequency 1090 MHz by aeronautical utility mobile stations for airport surface detection equipment, commonly referred to as vehicle "squitters," to help reduce collisions between aircraft and airport ground vehicles. In addition, we establish service rules for audio visual warning systems to help aircraft in flight avoid antenna structures and other obstacles. We also adopt rules to permit ground testing of aviation data link systems, and decline to authorize remote monitoring of certain automated ground stations.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2013/10/03/2013-22500/aviation-services)
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