Candidate
Candidate means a non-U.S. citizen who applies for flight training or recurrent training from a flight training provider. The term does not include foreign military personnel who are endorsed for flight training by the U.S. Department of Defense (DoD), as described in 1552.7(2); and does not include a non-U.S. citizen providing in-aircraft or in-simulator services or support to another candidate's training event (commonly referred to as side-seat support) if the individual providing this support holds a type rating or other set of pilot certificates required to operate the aircraft or simulator in which the supported individual is receiving instruction.
Source
49 CFR § 1552.3
Scoping language
In addition to the terms in 1500.3 and 1540.5 of this chapter, the following terms apply to this part: