(a) Publicly and privately owned facilities where the public congregates shall be equipped with sufficient temporary or permanent restrooms to meet the needs of the public at peak hours.
(b) The executive commissioner shall adopt rules to implement Subsection (a), including a rule that in providing sufficient restrooms a ratio of not less than 2:1 women’s-to-men’s restrooms or other minimum standards established in consultation with the Texas State Board of Plumbing Examiners shall be maintained if the use of the restrooms is designated by gender. The rules shall apply to facilities where the public congregates and on which construction is started on or after January 1, 1994, or on which structural alterations, repairs, or improvements exceeding 50 percent of the entire facility are undertaken on or after January 1, 1994.

(c) In this section:
(1) “Facilities where the public congregates” means sports and entertainment arenas, stadiums, community and convention halls, specialty event centers, and amusement facilities. The term does not include hotels, churches, restaurants, bowling centers, public or private elementary or secondary schools, or historic buildings.
(2) “Restroom” means toilet, chemical toilet, or water closet.
(d) The executive commissioner may adopt rules consistent with Subsection (c)(1) to define “facilities where the public congregates.”