Tex. Water Code § 6.304

The board may convene one or more ad hoc committees composed of representatives of current or potential project sponsors, the Texas Department of Transportation, river authorities, retail public utilities, electric utilities, counties, municipalities, special purpose districts, common carriers, and other entities considered appropriate by the board to advise and assist the board in fulfilling any purpose described by Section 6.302, including in drafting any guidance or best practices described by that section.