Tex. Water Code § 68.153
The director appointed by the commissioners court for the district at large may be:
(1) a person employed by a member of an association that includes steamship owners, operators, and agents and stevedoring and terminal companies and that:
Added by Acts 2007, 80th Leg., R.S., Ch. 913 (H.B. 3011), Sec. 1, eff. June 15, 2007.