47 CFR § 17.24 - Existing structures.

---
identifier: "/us/cfr/t47/s17.24"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "47 CFR § 17.24 - Existing structures."
title_number: 47
title_name: "Telecommunication"
section_number: "17.24"
section_name: "Existing structures."
chapter_name: "FEDERAL COMMUNICATIONS COMMISSION"
subchapter_number: "A"
subchapter_name: "GENERAL"
part_number: "17"
part_name: "CONSTRUCTION, MARKING, AND LIGHTING OF ANTENNA STRUCTURES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "47 U.S.C. 154, 301, 303, 309."
cfr_part: "17"
---


# 17.24 Existing structures.

No change to painting or lighting criteria or relocation of airports shall at any time impose a new restriction upon any then existing or authorized antenna structure or structures, unless the FAA issues a new determination of “no hazard” and associated FAA study for the particular structure.

[79 FR 56986, Sept. 24, 2014]