Tex. Transp. Code § 171.152
A district may contract with any person, including:
Added by Acts 2005, 79th Leg., Ch. 756 (H.B. 2958), Sec. 1, eff. June 17, 2005.
Acts 2011, 82nd Leg., R.S., Ch. 449 (S.B. 1578), Sec. 5, eff. June 17, 2011.