Acts 1957, 55th Leg., p. 575, ch. 269, Sec. 18.
Amended by Acts 1983, 68th Leg., p. 2688, ch. 465, Sec. 1, eff. Sept. 1, 1983; Acts 1983, 68th Leg., p. 5220, ch. 953, Sec. 2, eff. Sept. 1, 1983; Acts 2001, 77th Leg., ch. 1091, Sec. 2.13, eff. Sept. 1, 2001.
Text of article effective until January 01, 2022