Tex. Gov't Code § 2155.503
(a) The comptroller and the department shall adopt rules to implement this subchapter. The rules must:
Added by Acts 2001, 77th Leg., ch. 1422, Sec. 2.01, eff. Sept. 1, 2001.
Acts 2007, 80th Leg., R.S., Ch. 937 (H.B. 3560), Sec. 1.17, eff. September 1, 2007.