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U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
All Titles
Title 14
Chapter I
Part 135
Subpart F - Subpart F—Crewmember Flight Time and Duty Period Limitations and Rest Requirements
§ 135.261 - Applicability.
§ 135.263 - Flight time limitations and rest requirements: All certificate holders.
§ 135.265 - Flight time limitations and rest requirements: Scheduled operations.
§ 135.267 - Flight time limitations and rest requirements: Unscheduled one- and two-pilot crews.
§ 135.269 - Flight time limitations and rest requirements: Unscheduled three- and four-pilot crews.
§ 135.271 - Helicopter hospital emergency medical evacuation service (HEMES).
§ 135.273 - Duty period limitations and rest time requirements.
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