Before making a report under section 78, the Independent Planning Commission must, if a party, being--
(a) the appellant, or
(b) the Heritage Council, or
(c) a person who has made representations to the Heritage Council under section 61 (3) with respect to the application for approval from the determination of which the appeal has been made, or
(d) the consent authority from whose determination, or neglect or delay to make a determination, the appeal is made,so desires, afford the party an opportunity of appearing personally or, unless otherwise provided by the regulations, by an Australian legal practitioner or agent.