D.C. Code § 7-1708: Exceptions.

This subchapter shall not prohibit smoking in the following areas:

(1)

An area where smoking is permitted by any provision of this subchapter;

(2)

A tobacco shop or store primarily concerned with selling tobacco and smoking equipment;

(3)

Upon the stage by performers during the course of any theatrical performance if smoking is part of the theatrical production;

(4)

A tavern or nightclub as defined in § 25-101(52) and (33), respectively; or

(5)

A room or hall that is used for private social functions, which includes weddings, banquets, and parties.