Tex. Occ. Code § 51.052
Acts 1999, 76th Leg., ch. 388, Sec. 1, eff. Sept. 1, 1999.
Amended by Acts 2003, 78th Leg., ch. 816, Sec. 1.003, eff. Sept. 1, 2003;
Acts 2003, 78th Leg., ch. 1170, Sec. 25.01, eff. Sept. 1, 2003.
Acts 2005, 79th Leg., Ch. 728 (H.B. 2018), Sec. 15.001(b), eff. September 1, 2005.