# Colo Void Clause Coalition; Antenna Systems Co-Location; Voluntary Best Practices
> **Rule** · Notice of amended policy. · Published 2007-11-21 · Effective 2007-11-21 · 72 FR 65449
## Document
- **Document number:** E7-22720
- **Category:** other
- **Type:** Rule
- **Action:** Notice of amended policy.
- **Citation:** 72 FR 65449
- **Publication date:** 2007-11-21
- **Effective date:** 2007-11-21
- **FAA docket:** Docket No. FAA-2004-16982
## Abstract

On April 27, 2004, the FAA revised its policy regarding the co-location of antenna systems on existing structures previously studied by the FAA. Based on various additional comments from industry regarding the initial policy, the FAA finds that further modifications to this policy are necessary.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2007/11/21/E7-22720/colo-void-clause-coalition-antenna-systems-co-location-voluntary-best-practices)
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