Tex. Gov't Code § 609.510
A contract authorized by Section 609.505 or by Section 609.509 for either deferred compensation plan is exempt from:
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(5), eff. Sept. 1, 1997;
Acts 1999, 76th Leg., ch. 1541, Sec. 53, eff. Sept. 1, 1999.