Maryland Transportation Section 11-170

      (a)      "Travel trailer" means a vehicle that:

            (1)      Is mounted on wheels;

            (2)      Is of such a size and weight as not to require any special highway movement permit when towed by a motor vehicle;

            (3)      Is designed and constructed primarily to provide temporary living quarters for recreational, camping, or travel use; and

            (4)      Is no longer than 40 feet.

      (b)      "Travel trailer" includes a fifth wheel travel trailer.