40 Tex. Admin. Code §§ 819.121–819.136 § 819.126

(a) It is unlawful to discriminate, based on race, color, disability, religion, sex, national origin, or familial status, by providing inaccurate or untrue information about the availability of dwellings for sale or rent. (b) Prohibited actions under this section include, but are not limited to: (1) indicating through words or conduct that a dwelling that is available for inspection, sale, or rent has been sold or rented based on race, color, disability, religion, sex, national origin, or familial status; (2) representing that covenants or other deed, trust, or lease provisions that purport to restrict the sale or rental of dwellings based on race, color, disability, religion, sex, national origin, or familial status preclude the sale or rental of a dwelling to a person; (3) enforcing covenants or other deed, trust, or lease provisions that preclude the sale or rental of a dwelling to any person based on race, color, disability, religion, sex, national origin, or familial status; (4) limiting information, through words or conduct, regarding suitably priced dwellings available for inspection, sale, or rent based on race, color, disability, religion, sex, national origin, or familial status; and (5) providing false or inaccurate information regarding the availability of a dwelling for sale or rent to any person, including testers, regardless of whether such person is actually seeking housing based on race, color, disability, religion, sex, national origin, or familial status.