Tex. Gov't Code § 853.106
(a) After determining a member's prior service credit under Section 853.105, the retirement system shall issue to the member a prior service certificate stating:
Acts 1981, 67th Leg., p. 1876, ch. 453, Sec. 1, eff. Sept. 1, 1981. Renumbered from Vernon's Ann.Civ.St. Title 110B, Sec. 63.106 and amended by Acts 1989, 71st Leg., ch. 179, Sec. 1, eff. Sept. 1, 1989.
Acts 2019, 86th Leg., R.S., Ch. 991 (S.B. 1337), Sec. 6, eff. January 1, 2020.