Md. Code, Alcoholic Beverages and Cannabis § 15–1103

(a) The Board may issue a nonrefillable container permit for draft beer to a holder of a Class B or Class H license.

(b) The hours of sale for the permit:

(1) begin at the same time for the underlying license; and

(2) end at midnight.

(c) (1) Except as provided in paragraph (2) of this subsection, the annual permit fee is $500.

(2) An applicant who has a refillable container permit may not be charged a fee for a nonrefillable container permit.