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  5. § 135.601
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14 CFR · Part 135

14 CFR § 135.601

Applicability and definitions.

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Read in Subpart L
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)
(a)

Applicability. This subpart prescribes the requirements applicable to each certificate holder conducting helicopter air ambulance operations.

(b)

Definitions. For purposes of this subpart, the following definitions apply:

(1)

Helicopter air ambulance operation means a flight, or sequence of flights, with a patient or medical personnel on board, for the purpose of medical transportation, by a part 135 certificate holder authorized by the Administrator to conduct helicopter air ambulance operations. A helicopter air ambulance operation includes, but is not limited to—

(i)

Flights conducted to position the helicopter at the site at which a patient or donor organ will be picked up.

(ii)

Flights conducted to reposition the helicopter after completing the patient, or donor organ transport.

(iii)

Flights initiated for the transport of a patient or donor organ that are terminated due to weather or other reasons.

(2)

Medical personnel means a person or persons with medical training, including but not limited to flight physicians, flight nurses, or flight paramedics, who are carried aboard a helicopter during helicopter air ambulance operations in order to provide medical care.

(3)

Mountainous means designated mountainous areas as listed in part 95 of this chapter.

(4)

Nonmountainous means areas other than mountainous areas as listed in part 95 of this chapter.

Referenced By

Interpretations of This Section (1)

  • Triponey, 2018

Documents that cite this section, found in their catalog metadata or text. Listed by date, not by significance.

Regulations Referenced

14 CFR Part 13514 CFR Part 95

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)