In this chapter—

(1) “aircraft” means a contrivance used, or capable of being used, for transportation in the air.

(2) “vehicle” means a contrivance used, or capable of being used, for transportation on, below, or above land, but does not include aircraft.

(3) “vessel” means a contrivance used, or capable of being used, for transportation in water, but does not include aircraft.

(Pub. L. 103–272, § 1(e), July 5, 1994, 108 Stat. 1353.)