Md. Code, Alcoholic Beverages and Cannabis § 33–1103

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

(b) Before the Board issues the permit to an applicant, the applicant shall:

(1) complete the form that the Board provides; and

(2) pay an annual permit fee of $500.

(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) Receipts collected under the permit shall be included in the calculation of average daily receipts from the sale of alcoholic beverages under a Class B restaurant license and a Class B hotel license.