Added by Acts 1985, 69th Leg., ch. 729, Sec. 36, eff. Sept. 1, 1985. Amended by Acts 1987, 70th Leg., ch. 167, Sec. 2.20(34), eff. Sept. 1, 1987. Renumbered from Sec. 112.021 by Acts 1987, 70th Leg., ch. 167, 5.01(a)(28), eff. Sept. 1, 1987. Amended by Acts 1991, 72nd Leg., 1st C.S., ch. 17, Sec. 4.10, eff. Nov. 12, 1991; Acts 1999, 76th Leg., ch. 79, Sec. 4, eff. Sept. 1, 1999. Amended by: Acts 2005, 79th Leg., Ch. 1227 , Sec. 2.03, eff. September 1, 2005. Acts 2007, 80th Leg., R.S., Ch. 928 , Sec. 3.05, eff. June 15, 2007. Acts 2009, 81st Leg., 1st C.S., Ch. 2 , Sec. 2.11, eff. July 10, 2009. Acts 2011, 82nd Leg., R.S., Ch. 1232 , Sec. 2.17, eff. June 17, 2011.