Acts 1987, 70th Leg., ch. 147, Sec. 1, eff. Sept. 1, 1987. Amended by Acts 1995, 74th Leg., ch. 497, Sec. 2, eff. June 12, 1995; Acts 2003, 78th Leg., ch. 1204, Sec. 2.002, eff. Sept. 1, 2003. Amended by: Acts 2005, 79th Leg., Ch. 1337 , Sec. 8, eff. June 18, 2005. Acts 2007, 80th Leg., R.S., Ch. 258 , Sec. 1.04, eff. June 6, 2007. Acts 2007, 80th Leg., R.S., Ch. 258 , Sec. 1.05, eff. June 6, 2007. Acts 2007, 80th Leg., R.S., Ch. 258 , Sec. 1.08, eff. June 6, 2007. Acts 2007, 80th Leg., R.S., Ch. 865 , Sec. 1.04, eff. June 15, 2007. Acts 2007, 80th Leg., R.S., Ch. 865 , Sec. 1.05, eff. June 15, 2007. Acts 2007, 80th Leg., R.S., Ch. 865 , Sec. 1.08, eff. June 15, 2007.