Sec. 503.022. AUTHORITY TO SELF-INSURE. An institution may self-insure as part of a system insurance plan. Acts 1993, 73rd Leg., ch. 269, Sec. 1, eff. Sept. 1, 1993. Amended by: Acts 2005, 79th Leg., Ch. 265 (H.B. 7), Sec. 3.308, eff. September 1, 2005.