Tex. Gov't Code § 815.312
(b) The retirement system also shall deposit in the state accumulation account the interest portion of the following deposits made by members:
Acts 1981, 67th Leg., p. 1876, ch. 453, Sec. 1, eff. Sept. 1, 1981.
Amended by Acts 1985, 69th Leg., ch. 91, Sec. 16, eff. Sept. 1, 1985. Renumbered from Vernon's Ann.Civ.St. Title 110B, Sec. 25.308 and amended by Acts 1989, 71st Leg., ch. 179, Sec. 1, eff. Sept. 1, 1989.