Tex. Health & Safety Code § 773.022
The department shall divide the state into emergency medical services delivery areas that coincide, to the extent possible, with other regional planning areas.
Acts 1989, 71st Leg., ch. 678, Sec. 1, eff. Sept. 1, 1989.
Acts 2015, 84th Leg., R.S., Ch. 1 (S.B. 219), Sec. 3.1519, eff. April 2, 2015.