Md. Code, Alcoholic Beverages and Cannabis § 22-1102
§22–1102.
(a) The Board may issue a refillable container permit for draft beer to a holder of:
(1) a Class A–1 license;
(2) a Class A–2 license;
(3) a Class B license that has off–sale privileges; or
(4) a Class D license.
(b) The annual permit fee is $50.