Appropriate official. "Appropriate official" means the master or commanding officer, or authorized agent, owner, or consignee, of a commercial aircraft; this term and the term "carrier" are sometimes used interchangeably.
Carrier. See "Appropriate official."
Commercial aircraft. "Commercial aircraft" has the meaning provided in § 122.1(d) and includes aircraft engaged in passenger flight operations, all-cargo flight operations, and dual flight operations involving the transport of both cargo and passengers.
Crew Member. "Crew member" means a person serving on board an aircraft in good faith in any capacity required for normal operation and service of the flight. In addition, the definition of "crew member" applicable to this section should not be applied in the context of other customs laws, to the extent this definition differs from the meaning of "crew member" contemplated in such other customs laws.
Departure. "Departure" means the point at which the wheels are up on the aircraft and the aircraft is en route directly to its destination.
Emergency. "Emergency" means, with respect to an aircraft arriving at a U.S. port due to an emergency, an urgent situation due to a mechanical, medical, or security problem affecting the flight, or to an urgent situation affecting the non-U.S. port of destination that necessitates a detour to a U.S. port.
Passenger. "Passenger" means any person, including a Federal Aviation Administration (FAA) Aviation Security Inspector with valid credentials and authorization, being transported on a commercial aircraft who is not a crew member.
Securing the aircraft. "Securing the aircraft" means the moment the aircraft's doors are closed and secured for flight.
United States. "United States" means the continental United States, Alaska, Hawaii, Puerto Rico, Guam, the Commonwealth of the Northern Mariana Islands (beginning November 28, 2009), and the Virgin Islands of the United States.
19 C.F.R. §122.49a