Tex. Loc. Gov't Code § 327.155
(a) A zoo board may contract with any person, including a governmental entity, private vendor, or foreign state, for any zoo board purpose, including contracting with the following entities to furnish staff, facilities, equipment, programs, utilities, and services the board considers necessary or appropriate to effectively operate the zoo board or a zoo under its control:
Added by Acts 2003, 78th Leg., ch. 1235, Sec. 1, eff. June 20, 2003.