14 C.F.R. § 61.1
(a) Except as provided in parts 107 and 194 of this chapter, this part prescribes:
(b) For the purpose of this part:
Accredited has the same meaning as defined by the Department of Education in 34 CFR 600.2.
Aeronautical experience means pilot time obtained in an aircraft, flight simulator, or flight training device for meeting the appropriate training and flight time requirements for an airman certificate, rating, flight review, or recency of flight experience requirements of this part.
Authorized instructor means—
Aviation training device means a training device, other than a full flight simulator or flight training device, that has been evaluated, qualified, and approved by the Administrator.
Complex airplane means an airplane that has a retractable landing gear, flaps, and a controllable pitch propeller, including airplanes equipped with an engine control system consisting of a digital computer and associated accessories for controlling the engine and propeller, such as a full authority digital engine control; or, in the case of a seaplane, flaps and a controllable pitch propeller, including seaplanes equipped with an engine control system consisting of a digital computer and associated accessories for controlling the engine and propeller, such as a full authority digital engine control.
Cross-country time means—
(i) Except as provided in paragraphs (ii) through (vii) of this definition, time acquired during flight—
(ii) For the purpose of meeting the aeronautical experience requirements (except for a rotorcraft category rating), for a private pilot certificate (except for a powered parachute category rating), a commercial pilot certificate, or an instrument rating, or for the purpose of exercising recreational pilot privileges (except in a rotorcraft) under § 61.101 (c), time acquired during a flight—
(iii) For the purpose of meeting the aeronautical experience requirements for a sport pilot certificate (except for powered parachute privileges), time acquired during a flight conducted in an appropriate aircraft that—
(iv) For the purpose of meeting the aeronautical experience requirements for a sport pilot certificate with powered parachute privileges or a private pilot certificate with a powered parachute category rating, time acquired during a flight conducted in an appropriate aircraft that—
(v) For the purpose of meeting the aeronautical experience requirements for any pilot certificate with a rotorcraft category rating or an instrument-helicopter rating, or for the purpose of exercising recreational pilot privileges, in a rotorcraft, under § 61.101(c), time acquired during a flight—
(vi) For the purpose of meeting the aeronautical experience requirements for an airline transport pilot certificate (except with a rotorcraft category rating), time acquired during a flight—
(vii) For a military pilot who qualifies for a commercial pilot certificate (except with a rotorcraft category rating) under § 61.73 of this part, time acquired during a flight—
Examiner means any person who is authorized by the Administrator to conduct a pilot proficiency test or a practical test for an airman certificate or rating issued under this part, or a person who is authorized to conduct a knowledge test under this part.
Flight training means that training, other than ground training, received from an authorized instructor in flight in an aircraft.
Ground training means that training, other than flight training, received from an authorized instructor.
Institution of higher education has the same meaning as defined by the Department of Education in 34 CFR 600.4.
Instrument approach means an approach procedure defined in part 97 of this chapter.
Instrument training means that time in which instrument training is received from an authorized instructor under actual or simulated instrument conditions.
Knowledge test means a test on the aeronautical knowledge areas required for an airman certificate or rating that can be administered in written form or by a computer.
Nationally recognized accrediting agency has the same meaning as defined by the Department of Education in 34 CFR 600.2.
Night vision goggles means an appliance worn by a pilot that enhances the pilot's ability to maintain visual surface reference at night.
Night vision goggle operation means the portion of a flight that occurs during the time period from 1 hour after sunset to 1 hour before sunrise where the pilot maintains visual surface reference using night vision goggles in an aircraft that is approved for such an operation.
Passenger means any person on board an aircraft other than a crewmember, FAA personnel, manufacturer personnel required for type certification, or a person receiving or providing flight training, checking, or testing as authorized by this part.
Pilot time means that time in which a person—
Practical test means a test on the areas of operations for an airman certificate, rating, or authorization that is conducted by having the applicant respond to questions and demonstrate maneuvers in flight, in a flight simulator, or in a flight training device.
Set of aircraft means aircraft that share similar performance characteristics, such as similar airspeed and altitude operating envelopes, similar handling characteristics, and the same number and type of propulsion systems.
Student pilot seeking a sport pilot certificate means a person who has received an endorsement—
Technically advanced airplane (TAA) means an airplane equipped with an electronically advanced avionics system.
Training time means training received—
[Docket 25910, 62 FR 16298, Apr. 4, 1997; Amdt. 61-103, 62 FR 40893, July 30, 1997 as amended by Amdt. 61-110, 69 FR 44864, July 27, 2004; Amdt. 61-124, 74 FR 42546, Aug. 21, 2009; Amdt. 61-128, 76 FR 54105, Aug. 31, 2011; Amdt. 61-130, 78 FR 42372, July 15, 2013; Amdt. 61-137, 81 FR 42208, June 28, 2016; Amdt. 61-142, 83 FR 30276, June 27, 2018; Docket FAA-2023-1351, Amdt. 61-156, 89 FR 80339, Oct. 2, 2024; FAA-2023-1275, Amdt. 61-157, 89 FR 92483, Nov. 21, 2024; Docket FAA-2023-1377, Amdt. 61-159, 90 FR 35218, July 24, 2025]