This subchapter applies only to the board of a subregion that has no principal municipality with a population of more than 1.1 million according to the most recent federal decennial census.

Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.

Acts 2015, 84th Leg., R.S., Ch. 1122 (H.B. 3777), Sec. 5, eff. September 1, 2015.