Although in the usual course of disposition of a petition for a declaratory ruling no formal hearing will be held, the commission may order a hearing. Any petitioner or party in interest who requests a hearing shall state the reasons why a hearing is necessary and, to the extent that the request for a hearing is based upon factual assertion, shall attach an affidavit establishing the facts. If the commission orders a hearing, the provisions of subchapter 3 shall govern the proceeding.
Haw. Code R. § 16-601-165