Tex. Health & Safety Code § 191.021
(a) The state is divided into registration districts for the purposes of registering births, deaths, and fetal deaths. The registration districts are:
Acts 1989, 71st Leg., ch. 678, Sec. 1, eff. Sept. 1, 1989.
Acts 2015, 84th Leg., R.S., Ch. 1 (S.B. 219), Sec. 3.0536, eff. April 2, 2015.