410 ILCS 82/15: Smoking in public places, places of employment, and governmental vehicles prohibited.

No person shall smoke in a public place or in any place of employment or within 15 feet of any entrance to a public place or place of employment. No person may smoke in any vehicle owned, leased, or operated by the State or a political subdivision of the State. An owner shall reasonably assure that smoking is prohibited in indoor public places and workplaces unless specifically exempted by Section 35 of this Act.