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OpenJurist

truck tractor

Defined in 1 place of the United States Code.

“truck tractor” means—

(A) a non-property-carrying power unit that operates in combination with a semitrailer or trailer; or

(B) a power unit that carries as property only motor vehicles when operating in combination with a semitrailer in transporting motor vehicles.

Source

Truck tractor.—The term "truck tractor" means—

(A) a non-property-carrying power unit that operates in combination with a semitrailer or trailer; or

(B) a power unit that carries as property motor vehicles when operating in combination with a semitrailer in transporting motor vehicles or any other commodity, including cargo or general freight on a backhaul.

Source

Truck tractor.—The term “truck tractor” means—

(A) a non-property-carrying power unit that operates in combination with a semitrailer or trailer; or

(B) a power unit that carries as property only motor vehicles when operating in combination with a semitrailer in transporting motor vehicles.

Source