Considerable progress has been made in the adoption of comprehensive smoke-free laws in indoor public places at the state and local level over the past two decades. In some states without statewide comprehensive smoke-free laws, substantive progress has been made adopting comprehensive smoke-free laws at the local level. However, statewide smoke-free progress has stalled in recent years as no states in the southeast have a statewide comprehensive smoke-free law.
The number of states (including DC) with statewide comprehensive smoke-free laws in effect increased from zero on December 31, 2000 to 26 on December 31, 2010 and 28 on June 9, 2016. Completely eliminating smoking indoors is the only way to protect people from involuntary exposure to secondhand smoke. Separating smokers from nonsmokers, cleaning the air, and ventilating buildings cannot eliminate secondhand smoke exposure.