(a) In this section, "Texas trade association" means a cooperative and voluntarily joined statewide association of business or professional competitors in this state designed to assist its members and its industry or profession in dealing with mutual business or professional problems and in promoting their common interest.
(b) A person may not be a member of the board if:
(1) the person is an officer, employee, or paid consultant of a Texas trade association in the field of property tax appraisal, assessment, or collection; or
(2) the person's spouse is an officer, manager, or paid consultant of a Texas trade association in the field of property tax appraisal, assessment, or collection.
(c) A person may not be a member of the board if the person or the person's spouse is required to register as a lobbyist under Chapter 305, Government Code, because of the person's activities for compensation on behalf of a profession related to the operation of the board or the department.