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Part 135
§ 135.125

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14 CFR · Part 135

14 CFR § 135.125

Aircraft security.

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Read in Subpart B

Part 135 Contents

Subpart A: General
Subpart B: Flight Operations
Subpart C: Aircraft and Equipment
Subpart D: VFR/IFR Operating Limitations and Weather Requirements
Subpart E: Flight Crewmember Requirements
Subpart F: Crewmember Flight Time and Duty Period Limitations and Rest Requirements
Subpart G: Crewmember Testing Requirements
Subpart H: Training
Subpart I: Airplane Performance Operating Limitations
Subpart J: Maintenance, Preventive Maintenance, and Alterations
Subpart K: Hazardous Materials Training Program
Subpart L: Helicopter Air Ambulance Equipment, Operations, and Training Requirements
Appendix A to Part 135: Additional Airworthiness Standards for 10 or More Passenger Airplanes
Appendix B to Part 135: Airplane Flight Recorder Specifications
Appendix C to Part 135: Helicopter Flight Recorder Specifications
Appendix D to Part 135: Airplane Flight Recorder Specification
Appendix E to Part 135: Helicopter Flight Recorder Specifications
Appendix F to Part 135: Airplane Flight Recorder Specification
Appendix G to Part 135: Extended Operations (ETOPS)

Certificate holders conducting operators conducting operations under this part must comply with the applicable security requirements in 49 CFR chapter XII.

Reflects the eCFR edition current as of September 29, 2026. Retrieved from ecfr.gov on October 16, 2026.

Primary Source

Official Source (14 CFR · Part 135)