Towers, safety equipment, and related concerns
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Towers

• If towers are to be used, you may have to contact several government agencies.
• Local and state municipalities may have construction regulations, and a permit is almost always required.
• In the United States, if any tower exceeds a height of 200 feet above ground level (AGL) or is within a certain proximity to an airport, both the FCC and Federal Aviation Administration (FAA) must be contacted.

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Reference:
Coleman, David D.,Westcott, David A. CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-106 Wiley.