Tex. Health & Safety Code § 12.036
(a) In furnishing public health services to a person, the department is subrogated to the person's right of recovery from:
(c) The executive commissioner or the executive commissioner's designee may waive the department's right of subrogation in whole or in part if the executive commissioner or the designee determines that:
Acts 1989, 71st Leg., ch. 678, Sec. 1, eff. Sept. 1, 1989.
Acts 2015, 84th Leg., R.S., Ch. 1 (S.B. 219), Sec. 3.0030, eff. April 2, 2015.