Md. Code, Transportation § 21–1103

(a) Except as provided in subsection (b), (c), or (d) of this section, a person may not drive any vehicle on a sidewalk or sidewalk area unless it is a permanent or authorized temporary driveway.

(b) (1) For the purposes of this subsection, “bicycle” does not include “moped”, as defined in § 11–134.1 of this article.

(2) Unless prohibited by local ordinance, a person may ride a bicycle, play vehicle, or unicycle on a sidewalk or sidewalk area.

(3) In a place where a person may ride a bicycle on a sidewalk or sidewalk area, a person may also ride a bicycle from the curb or edge of the roadway in or through a crosswalk to the opposite curb or edge of the roadway.

(c) Unless prohibited by local ordinance, an individual with a disability may use a special vehicle other than a wheelchair on sidewalks or sidewalk areas.

(d) An individual may use a wheelchair on sidewalks or sidewalk areas in accordance with § 21–501.1 of this title.