(a) In this subtitle, 'parking lot' means a privately owned facility consisting of 3 or more spaces for motor vehicle parking that is: (1) Accessible to the general public; and (2) Intended by the owner of the facility to be used primarily by the owner’s customers, clientele, residents, lessees, or guests. (b) (1) This subtitle applies only to the towing or removal of vehicles from parking lots. (2) Nothing in this subtitle prevents a local authority from exercising any power to adopt local laws or regulations relating to the registration or licensing of persons engaged in, or otherwise regulating in a more stringent manner, the parking, towing or removal, or impounding of vehicles.
Maryland Legal Code