U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 47Chapter IPart 90Subpart N - Subpart N—Operating Requirements
§ 90.401 - Scope.
§ 90.403 - General operating requirements.
§ 90.405 - Permissible communications.
§ 90.407 - Emergency communications.
§ 90.411 - Civil defense communications.
§ 90.415 - Prohibited uses.
§ 90.417 - Interstation communication.
§ 90.419 - Points of communication.
§ 90.421 - Operation of mobile station units not under the control of the licensee.
§ 90.423 - Operation on board aircraft.
§ 90.425 - Station identification.
§ 90.427 - Precautions against unauthorized operation.
§ 90.429 - Control point and dispatch point requirements.
§ 90.431 - Unattended operation.
§ 90.433 - Operator requirements.
§ 90.437 - Posting station licenses.
§ 90.439 - Inspection of stations.
§ 90.441 - Inspection and maintenance of antenna structure marking and associated control equipment.
§ 90.443 - Content of station records.
§ 90.445 - Form of station records.
§ 90.447 - Retention of station records.
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