Md. Code, Transportation § 11–176

(a) (1) “Vehicle” means, except as provided in subsection (b) of this section, any device in, on, or by which any individual or property is or might be transported or towed on a highway.

(2) “Vehicle” includes a low speed vehicle and an off–highway recreational vehicle.

(b) “Vehicle” does not include:

(1) An electric personal assistive mobility device, as defined in § 21–101(j) of this article; or

(2) A personal delivery device, as defined in § 21–104.5 of this article.