Added by Acts 1983, 68th Leg., p. 4049, ch. 631, Sec. 3, eff. Sept. 1, 1983. Amended by Acts 1985, 69th Leg., ch. 583, Sec. 3, eff. Sept. 1, 1985; Acts 1987, 70th Leg., ch. 170, Sec. 1, eff. Sept. 1, 1987; Acts 1987, 70th Leg., ch. 677, Sec. 8, eff. Sept. 1, 1987; Acts 1989, 71st Leg., ch. 614, Sec. 23 to 26, eff. Sept. 1, 1989; Acts 1989, 71st Leg., ch. 739, Sec. 4 to 7, eff. Sept. 1, 1989; Acts 1991, 72nd Leg., ch. 366, Sec. 2, eff. Sept. 1, 1991. Renumbered from Sec. 25.08 and amended by Acts 1993, 73rd Leg., ch. 900, Sec. 1.01, eff. Sept. 1, 1994. Amended by Acts 1995, 74th Leg., ch. 658, Sec. 2, 3, eff. June 14, 1995; Acts 1995, 74th Leg., ch. 660, Sec. 1, 2, eff. Sept. 1, 1995; Acts 1995, 74th Leg., ch. 1024, Sec. 23, eff. Sept. 1, 1995; Acts 1997, 75th Leg., ch. 1, Sec. 2, eff. Jan. 28, 1997; Acts 1997, 75th Leg., ch. 1193, Sec. 21, eff. Sept. 1, 1997; Acts 1999, 76th Leg., ch. 62, Sec. 15.02(c), eff. Sept. 1, 1999; Acts 2001, 77th Leg., ch. 23, Sec. 1, eff. Sept. 1, 2001; Acts 2003, 78th Leg., ch. 134, Sec. 1, eff. Sept. 1, 2003. Amended by: Acts 2007, 80th Leg., R.S., Ch. 66 , Sec. 2, eff. May 11, 2007. Acts 2007, 80th Leg., R.S., Ch. 1113 , Sec. 1, eff. January 1, 2008. Acts 2007, 80th Leg., R.S., Ch. 1113 , Sec. 2, eff. January 1, 2008. Acts 2009, 81st Leg., R.S., Ch. 87 , Sec. 19.001, eff. September 1, 2009. Acts 2011, 82nd Leg., R.S., Ch. 136 , Sec. 3, eff. September 1, 2011. Acts 2011, 82nd Leg., R.S., Ch. 136 , Sec. 4, eff. September 1, 2011.