(a) Alcoholic beverages shall not be manufactured, kept for sale, or sold by any licensee other than at the licensed establishment; provided, that the Board may permit the storing of beverages upon premises other than the licensed establishment under the following classes of licenses: (1) Manufacturer’s license; (2) Wholesaler’s license; (3) Off-premises retailer’s license, class A; (4) Common carrier license, class C or D; and (5) Caterer’s license. (b) A licensee may not store alcoholic beverages upon premises outside the District.