RESTRICTIONS ON OPERATIONS.
(1) Person Responsible. No premises operated under a Class “B” license may be open for business unless there is upon the premises the licensee, the agent named in the license if the licensee is a corporation, or some person who has an operator’s license and who is responsible for the acts of all persons serving any alcohol beverages to customers. No person other than the licensee or agent may serve alcohol beverages in any place operated as a Class “B” license or permit unless he or she has an operator’s license or is under the immediate supervision of the licensee or agent or a person holding an operator’s license, who is on the premises at the time of the service.
(2) Closing Hours.
[a] No premises for which a Class “B” license has been issued may remain open between 2:00 a.m. and 6:00 a.m. Monday through Friday, and between 2:30 a.m. and 6:00 a.m. on Saturdays and Sundays. On January 1, the premises are not required to close.
[b] Between 12 midnight and 8 a.m. no person may sell alcohol beverages on Class “B” licensed premises in an original unopened package, container or bottle for consumption away from the premises.