35 Miss. Code R. § 2-02-05-101
All sales of alcoholic beverages by on-premises permittees shall be for consumption in the licensed premises only, unless otherwise expressly authorized by law or regulation. The licensed premises shall consist of the area designated in the floor plan. In the event that a permittee has multiple permits for a business establishment and there is controlled access to all areas of the establishment, the permittee may submit an all-inclusive floor plan of the entire enclosed area. The Department shall have the discretion to allow the consumption of alcoholic beverages throughout the permitted area regardless of where on the premises the beverages are purchased as long as the Department is satisfied that the permittee is the actual owner of the entire premises and that there is sufficient controlled access to the premises.
35 Miss. Code. R. § 2-02-05-101