Tex. Gov't Code § 832.001
(a) Except as provided by Subsection (b), membership in the retirement system is limited to persons who have never been eligible for membership in the Judicial Retirement System of Texas Plan Two and who, before the date the Judicial Retirement System of Texas Plan Two began operation, became judges, justices, and commissioners of:
Acts 1981, 67th Leg., p. 1876, ch. 453, Sec. 1, eff. Sept. 1, 1981.
Amended by Acts 1985, 69th Leg., ch. 602, Sec. 9, Sept. 1, 1985. Renumbered from Vernon's Ann.Civ.St. Title 110B, Sec. 42.001 and amended by Acts 1989, 71st Leg., ch. 179, Sec. 1, eff. Sept. 1, 1989.
Acts 2019, 86th Leg., R.S., Ch. 606 (S.B. 891), Sec. 15.03(4), eff. September 1, 2019.