In C1, C5, C6-5 or C6-7 Districts

C1 C5 C6-5 C6-7

In the districts indicated, all such uses shall be located within completely enclosed buildings except for store fronts or store windows, associated with eating and drinking establishments, which may be opened to serve customers outside the building upon the adoption of initial rules governing the Permanent Open Restaurants program by an authorized agency following authorizing legislation by the City Council.