The following definitions apply in this part:
Administrator means the Administrator of the Transportation Security Administration or the Administrator's designee.
Air carrier means a citizen of the United States who undertakes directly to engage in or provide air transportation.
Air transportation means intrastate, interstate or foreign air transportation.
Aircraft means a device that is used or intended to be used for flight in the air.
Airport means any landing area used regularly by aircraft for receiving or discharging passengers or cargo.
Direct air carrier and foreign air carrier means a selling carrier.
Foreign air carrier means any person other than a citizen of the United States who undertakes directly to engage in or provide air transportation.
Foreign air transportation means the carriage by aircraft of persons for compensation or hire between a place in the United States and any place outside of the United States.
Frequent flyer award means a zero-fare award of air transportation that a domestic air carrier or foreign air carrier provides to a passenger in exchange for accumulated travel mileage credits in a customer loyalty program, whether or not the term frequent flyer is used in the definition of that program.
Interstate air transportation means the carriage by aircraft of persons for compensation or hire within the United States.
Intrastate air transportation means the carriage of persons for compensation or hire wholly within the same State of the United States.
Nonrevenue passenger means a passenger receiving air transportation from an air carrier or foreign air carrier for which the air carrier or foreign air carrier does not receive remuneration.
One-way trip means any trip that is not a round trip.
Origin point means the location at which a trip on a complete air travel itinerary begins.
Passenger enplanement means a person boarding in the United States in scheduled or nonscheduled service on aircraft in intrastate, interstate, or foreign air transportation.
Principal means the aggregate amount of all passenger security services fees due to be remitted to the Transportation Security Administration by an air carrier as required by this part.
Round trip means a trip on an air travel itinerary that terminates at the origin point.
Selling carrier means an air carrier or foreign air carrier that provides or offers to provide air transportation and has control over the operational functions performed in providing that air transportation.