(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 port commissioner and may not be an authority employee employed in a “bona fide executive, administrative, or professional capacity,” as that phrase is used for purposes of establishing an exemption to the overtime provisions of the federal Fair Labor Standards Act of 1938 (29 U.S.C. § 201 et seq.), if:
(1) the person is an officer, employee, or paid consultant of a Texas trade association in a field relating to maritime commerce, the members of which are regulated by the authority; or
(2) the person’s spouse is an officer, manager, or paid consultant of a Texas trade association in a field relating to maritime commerce, the members of which are regulated by the authority.

(c) A person may not be a port commissioner or act as the general counsel to the port commission or the authority if the person 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 authority.
(d) A person may not be a port commissioner if the person or an individual related to the person in the first degree of consanguinity or affinity, as determined under Chapter 573, Government Code:
(1) is employed by or participates in the management of a business entity or other organization regulated by or receiving money from the authority; or
(2) uses or receives a substantial amount of tangible goods, services, or money from the authority other than compensation or reimbursement authorized by law for port commission membership, attendance, or expenses.