205 Mass. Reg. 138.12
A system of internal controls submitted by a gaming licensee in accordance with 205 CMR 138.02 shall include policies and procedures designed to ensure compliance with 205 CMR 136.00: Sale and Distribution of Alcoholic Beverages at Gaming Establishments including, at a minimum, procedures designed to ensure proper training of employees involved in the service of alcoholic beverages, procedures designed to prevent serving alcoholic beverages to underage or visibly intoxicated individuals, procedures to ensure that visibly intoxicated or impaired patrons are not permitted to play slot machines or table games (as further detailed in 205 CMR 138.14 ), and procedures to ensure that alcohol is properly secured and stored. If the gaming licensee intends to serve alcoholic beverages between the hours of 2:00 A.M. and 4:00 A.M., it shall include policies and procedures in its alcoholic beverage control submission designed to ensure that such service is only provided to patrons who are in the gaming area and actively engaged in gambling as defined by M.G.L. c. 23K, § 2.
205 CMR 138.12