Tex. Gov't Code § 2103.003
A state agency may spend appropriated funds only by:
(1) a warrant drawn by:
Added by Acts 1993, 73rd Leg., ch. 268, Sec. 1, eff. Sept. 1, 1993.
Amended by Acts 1997, 75th Leg., ch. 1035, Sec. 57, eff. June 19, 1997;
Acts 1999, 76th Leg., ch. 1467, Sec. 1.28, eff. June 19, 1999.