Tex. Nat. Res. Code § 162.036
Added by Acts 1983, 68th Leg., p. 547, ch. 115, Sec. 1.
Amended by Acts 1993, 73rd Leg., ch. 242, Sec. 2.12, eff. Aug. 30, 1993;
Acts 1993, 73rd Leg., ch. 300, Sec. 37, eff. Aug. 30, 1993;
Acts 2001, 77th Leg., ch. 620, Sec. 3, eff. Sept. 1, 2001.