U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 14Chapter IPart 133Subpart D - Subpart D—Airworthiness Requirements
§ 133.41 - Flight characteristics requirements.
§ 133.43 - Structures and design.
§ 133.45 - Operating limitations.
§ 133.47 - Rotorcraft-load combination flight manual.
§ 133.49 - Markings and placards.
§ 133.51 - Airworthiness certification.
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