Tex. Water Code § 63.172
A contract entered into by the district shall be in writing and signed by the contractors and the commissioners, any two of the commissioners, the executive director of the district, or an authorized representative of the executive director.
Acts 1971, 62nd Leg., p. 110, ch. 58, Sec. 1, eff. Aug. 30, 1971.
Acts 2007, 80th Leg., R.S., Ch. 1330 (S.B. 1531), Sec. 12, eff. June 15, 2007.