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; or2. 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.Added by 2016 Md. Laws, Ch. 41, Sec. 2, eff. 7/1/2016.