Md. Code Ann., Alco. Bev. & Cannabis § 2-136

(a) There is a retail off–site permit.

(b) (1) The Executive Director may issue the permit to a holder of a license issued by a local licensing board: (i) that allows the license holder to sell alcoholic beverages to the public for off–premises consumption; and (ii) other than a chain store. (2) The holder of a permit shall notify the local licensing board of the jurisdiction in which the off–site event will be held that the permit has been issued.

(c) (1) A permit may be used only: (i) at not more than three farmers’ markets in the jurisdiction in which the local license has been issued, that are listed in the farmers’ market directory of the Maryland Department of Agriculture; (ii) on invitation by a holder of a nonprofit beer, wine, and liquor festival permit, at the location of the permit, if the festival is located in the jurisdiction in which the local license has been issued or in an adjoining jurisdiction; and (iii) during the hours of operation of the farmers’ market or the nonprofit beer, wine, and liquor festival. (2) A permit authorizes the holder to: (i) at a farmers’ market, offer and sell beer, wine, and liquor produced by State–licensed manufacturers to consumers for consumption off the licensed premises; (ii) at a nonprofit beer, wine, and liquor festival, offer and sell beer, wine, and liquor to consumers for consumption on and off the licensed premises; and (iii) provide at no charge samples of: 1. beer, not to exceed 4 fluid ounces; 2. wine, not to exceed 1 fluid ounce; and 3. liquor, not to exceed four samples that do not exceed one–quarter of 1 fluid ounce.