Md. Code, Alcoholic Beverages and Cannabis § 20-1604
§20–1604.
The Board may not issue any license with an off–sale privilege for use in a business that is intended to be operated as a drive–through sales facility at which alcoholic beverages are:
(1) sold at retail; and
(2) dispensed through a window or door to a purchaser in a motor vehicle for off–premises consumption.