(a) Sections 154.053 and 154.073, Civil Practice and Remedies Code, apply to the communications, records, conduct, and demeanor of the impartial third party and the parties.
(b) Notwithstanding Section 154.073(e), Civil Practice and Remedies Code:
(1) a communication relevant to the dispute, and a record of the communication, made between an impartial third party and the parties to the dispute or between the parties to the dispute during the course of an alternative dispute resolution procedure are confidential and may not be disclosed unless all parties to the dispute consent to the disclosure; and
(2) the notes of an impartial third party are confidential except to the extent that the notes consist of a record of a communication with a party and all parties have consented to disclosure in accordance with Subdivision (1).

(c) Subsection (b)(1) does not apply to a final written agreement to which a governmental body is a signatory that is reached as a result of a dispute resolution procedure conducted under this chapter. Information in the final written agreement is subject to required disclosure, is excepted from required disclosure, or is confidential in accordance with Chapter 552 and other law.
(d) An impartial third party may not be required to testify in any proceedings relating to or arising out of the matter in dispute.