Haw. Rev. Stat. § 304A-2687: Validation of proceedings.

All proceedings taken with respect to the contracting of revenue bonded indebtedness and the issuance, sale, execution, and delivery of revenue bonds by the board are deemed validated, ratified, approved, and confirmed, notwithstanding any defects or irregularities in any proceedings or in the issuance, execution, sale, or delivery. The revenue bonds so issued or to be issued are and shall be valid obligations of the board.