Tex. Health & Safety Code § 401.054
(a) The department shall provide notice and an opportunity for a hearing on a matter under its jurisdiction as provided by its formal hearing procedures and Chapter 2001, Government Code, on written request of a person affected by any of the following procedures:
Acts 1989, 71st Leg., ch. 678, Sec. 1, eff. Sept. 1, 1989.
Amended by Acts 1995, 74th Leg., ch. 76, Sec. 5.95(49), 11.213, eff. Sept. 1, 1995;
Acts 1997, 75th Leg., ch. 1072, Sec. 46, eff. Sept. 1, 1997.