1995-2020. Centers for Disease Control and Prevention (CDC). State Tobacco Activities Tracking and Evaluation (STATE) System. Legislation – Smokefree Indoor Air for Private Worksites, Restaurants, and Bars (CDC STATE System Tobacco Legislation). The STATE System houses current and historical state-level legislative data on tobacco use prevention and control policies. Data are reported on a quarterly basis. Data include information related to state Smokefree indoor air policies in areas such as: Private Worksites, Restaurants, and Bars.