Md. Code, Alcoholic Beverages and Cannabis § 26–1102

(a) The Board may issue a refillable container permit for draft beer to a holder of a Class B beer, wine, and liquor license with off–sale privileges.

(b) An applicant for the permit shall complete the form that the Board provides.

(c) The hours of sale for the permit:

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

(2) end at midnight.

(d) The Board shall adopt regulations to carry out this section.

(e) The Board shall set an annual permit fee.