Louis, January 2, 2011, banned in all enclosed workplaces, including bars and restaurants; indefinitely exempts casino gaming floors and VIP lounges (unless St. Louis County and St. Charles County and/or St. Charles city also prohibit casino gaming floors), private clubs with no employees, retail tobacco stores, designated hotel/motel smoking rooms, private residences, and outdoor areas; bars in existence on January 2, 2011, that were less than 2000 sqft and did not allow under-21 patrons were exempt until January 2, 2016.