Tex. Gov't Code § 2101.039
Contracts made under this subchapter are not subject to:
Added by Acts 1993, 73rd Leg., ch. 268, Sec. 1, eff. Sept. 1, 1993.
Amended by Acts 1997, 75th Leg., ch. 165, Sec. 17.19(a), eff. Sept. 1, 1997;
Acts 1997, 75th Leg., ch. 891, Sec. 1.05, eff. Sept. 1, 1997;
Acts 1997, 75th Leg., ch. 1035, Sec. 83, eff. June 19, 1997.