Sec. 48.01. Smoking Tobacco
(a) A person commits an offense if he is in possession of a burning tobacco product or smokes tobacco in a facility of a public primary or secondary school or an elevator, enclosed theater or movie house, library, museum, hospital, transit system bus, or intrastate bus, as defined by Section 541.201, Transportation Code, plane, or train which is a public place.
(b) It is a defense to prosecution under this section that the conveyance or public place in which the offense takes place does not have prominently displayed a reasonably sized notice that smoking is prohibited by state law in such conveyance or public place and that an offense is punishable by a fine not to exceed $500.
(c) All conveyances and public places set out in Subsection (a) of Section 48.01 shall be equipped with facilities for extinguishment of smoking materials and it shall be a defense to prosecution under this section if the conveyance or public place within which the offense takes place is not so equipped.
(d) It is an exception to the application of Subsection (a) if the person is in possession of the burning tobacco product or smokes tobacco exclusively within an area designated for smoking tobacco or as a participant in an authorized theatrical performance.
(e) An area designated for smoking tobacco on a transit system bus or intrastate plane or train must also include the area occupied by the operator of the transit system bus, plane, or train.
(f) An offense under this section is punishable as a Class C misdemeanor.