Haw. Code R. § 13-167-6 : DEPARTMENT OF LAND AND NATURAL RESOURCES — WATER RESOURCES — RULES OF PRACTICE AND PROCEDURE FOR THE COMMISSION ON WATER RESOURCE MANAGEMENT — GENERAL PROVISIONS —167-6 - Quorum
Four members of the commission shall constitute a quorum to transact business and the concurrence of a simple majority of the members of the commission shall be necessary to approve any action of the commission.