(a) This section applies to a vendor who:
(1) responds to a district request for a proposal; or
(2) otherwise communicates with the district in connection with a potential agreement between that vendor and the district.
(b) The board by rule shall design a conflict of interest questionnaire that requires disclosure of a vendor’s affiliations or business relationships that might cause a conflict of interest.

(c) A vendor shall file a completed conflict of interest questionnaire with the board secretary not less than seven days after the vendor:
(1) begins contract discussions or negotiations with the district; or
(2) forwards an application, response to a request for proposal, correspondence, or other writings related to an agreement or potential agreement with the district.
(d) A vendor shall file an updated completed questionnaire with the board secretary:
(1) on September 1 of each year; and
(2) after each event that would make a statement in the questionnaire incomplete or inaccurate.
(e) Each contract entered into between a district and a vendor shall contain a provision stating that the contract is voidable if the board or vendor violates this section. A contract entered into between a district and a vendor is voidable if the board or a vendor violates this section.