Added by Acts 1995, 74th Leg., ch. 329, Sec. 1, eff. Sept. 1, 1995. Amended by Acts 1997, 75th Leg., ch. 875, Sec. 1, eff. Sept. 1, 1997; Acts 1997, 75th Leg., ch. 1313, Sec. 1, eff. Sept. 1, 1997; Acts 1997, 75th Leg., ch. 1423, Sec. 8.01, eff. Sept. 1, 1997; Acts 1999, 76th Leg., ch. 41, Sec. 1, eff. Sept. 1, 1999. Amended by: Acts 2007, 80th Leg., R.S., Ch. 661 , Sec. 1, eff. September 1, 2007. Acts 2007, 80th Leg., R.S., Ch. 1378 , Sec. 5, eff. September 1, 2007. Acts 2009, 81st Leg., R.S., Ch. 87 , Sec. 11.001, eff. September 1, 2009. Acts 2009, 81st Leg., R.S., Ch. 235 , Sec. 1, eff. September 1, 2009. Acts 2009, 81st Leg., R.S., Ch. 235 , Sec. 2, eff. September 1, 2009. Acts 2009, 81st Leg., R.S., Ch. 734 , Sec. 3, eff. September 1, 2009.