Md. Code, Alcoholic Beverages and Cannabis § 19–1310

(a) There is a Class C per diem beer, wine, and liquor license.

(b) A holder of a Class C per diem beer, wine, and liquor license:

(1) may cater an event conducted by a club at the place described in the license on the effective days of the license;

(2) shall distribute at the event for which the license is issued a wristband to each individual who is at least 21 years old; and

(3) may not serve an alcoholic beverage to any individual who does not wear the wristband.

(c) The fee for the license is $35 per day.

(d) A person who violates this section is subject to:

(1) for a first offense, a fine of $50; and

(2) for a second offense, a fine not exceeding $500 and denial of subsequent requests for a license for catering additional events.