Maryland Statutes
Subtitle 5 - State Caterer's Licenses
Section 2-504 - Duties and Restrictions

(a)    At each catered event at which alcoholic beverages are served, the holder of a general statewide or limited statewide caterer’s license shall:
        (1)    supply service personnel, including bartenders and waiters;
        (2)    ensure that the service personnel are present at all times during the catered event;
        (3)    have at least one individual at the catered event who has been certified by an alcohol awareness program under § 4–505 of this article;
        (4)    ensure that the sale of food represents at least 70% of the total cost of the catered event; and
        (5)    return all unopened containers of alcoholic beverages to the holder’s principal place of business at the end of the catered event.
    (b)    (1)    The holder of a general statewide or limited statewide caterer’s license may not:
            (i)    deliver alcoholic beverages to a catered event without service personnel present on the premises of the catered event; and
            (ii)    except when operating under an on–premises retail license that may be annually renewed issued by a local licensing board, serve alcoholic beverages at:
                1.    the holder’s principal place of business; or
                2.    an event for which the holder is a sponsor or promoter.
        (2)    To ensure product integrity, a partially used keg of a malt beverage may not be used at another catered event.