Tennessee Code Title 55. Motor and Other Vehicles § 55-1-105

(a) “Manufactured home” has the same meaning as defined in 42 U.S.C. § 5402(6).

(b) “Mobile home or house trailer” means any vehicle or conveyance, not self-propelled, designed for travel upon the public highways, and designed for use as a residence, office, apartment, storehouse, warehouse, or any other similar purpose.  “Mobile home or house trailer” includes any “manufactured home” as defined in subsection (a).

(c) “Pole trailer” means every vehicle without motive power designed to be drawn by another vehicle and attached to the towing vehicle by means of a reach, or pole, or by being boomed or otherwise secured to the towing vehicle, and ordinarily used for transporting long or irregularly shaped loads such as poles, pipes, or structural members capable, generally, of sustaining themselves as beams between the supporting connections.

(d) “Semitrailer” means every vehicle without motive power and not a motor vehicle as defined in this section, other than a pole trailer, designed for carrying persons or property and for being drawn by a motor vehicle and so constructed that some part of its weight and that of its load rests upon or is carried by another vehicle.

(e) “Trailer” means every vehicle with or without motive power, other than a pole trailer, designed for carrying persons or property and for being drawn by a motor vehicle and so constructed that no part of its weight rests upon the towing vehicle.