All decisions and orders shall be signed by the commissioners who heard and examined the evidence in the proceeding. A commissioner who did not hear and examine all of the evidence may sign only after the requirements set forth in section 91-11, HRS, have been complied with. If a commissioner does not concur with the majority in a decision, that commissioner may issue a dissenting decision or sign the decision indicating that the commissioner does not concur with the majority.
Haw. Code R. § 16-601-121