(1) An unincorporated association cannot be a party to a proceeding.
(2) If the Tribunal permits, a submission may be made on behalf of an unincorporated association on any relevant matter in a proceeding by—
(a) a member of the association; or
(b) a person authorised by the association who is not a member.
(3) The Tribunal may require a person referred to in subsection (2)(b) who seeks to make a submission to produce a certificate of authorisation from the unincorporated association signed by the president, secretary or other similar officer of the association.