D.C. Mun. Regs. tit. 24, r. 24-314
If food service is to be provided within a sidewalk cafe, the provisions of this section shall be followed.
A waiter, waitress, or an attendant shall be assigned to the sidewalk cafe for maintenance purposes at all times the sidewalk cafe is occupied by patrons.
Food preparation or storage shall not be located within the sidewalk cafe area.
All water pitchers, coffee pots and urns, utensils, condiments, containers, and other similar objects within a sidewalk cafe shall be protected from contamination.
Sugar, salt, and other condiments shall be packaged or maintained in a covered container.
Pre-setting of tables in a sidewalk cafe shall not be permitted unless the silverware is protected from contamination.
Outdoor seating shall be counted in satisfying restroom requirements, including, but not limited to, quantity, access, and location.
All access to a sidewalk cafe from the restaurant shall be provided with doors, screening, or other similar objects.
Trash and refuse storage shall not be located in the vicinity of a sidewalk cafe.
A structure or enclosure to accommodate the storage of garbage shall not be erected, maintained, or placed adjacent to a sidewalk cafe.
D.C. Mun. Regs. tit. 24, r. 24-314