Haw. Rev. Stat. § 49-25
The powers conferred by this chapter shall be in addition and supplemental to the powers conferred by any other law or charter. The undertaking may be acquired, purchased, constructed, reconstructed, improved, bettered, and extended, and the loan program may be established, and revenue bonds may be issued under this chapter for those purposes, notwithstanding that any other law may provide for the acquisition, purchase, construction, reconstruction, improvement, betterment, and extension of a like undertaking, or the establishment of a like loan program, or the issuance of revenue bonds for like purposes, and without regard to the requirements, restrictions, limitations, or other provisions contained in any other law or charter, including, but not limited to, any requirement for the approval by the voters of any county. Revenue bonds may be issued under this chapter notwithstanding any debt or other limitation prescribed by any law or charter and without obtaining the consent of any commission, board, bureau, agency, or department of the State, and without any other proceeding or happening of any other condition or thing than those proceedings, conditions, or things which are specifically required by this chapter, and the mode and method of procedure for the issuance of revenue bonds under this chapter need not conform to the provisions of any other law or charter. The authorization, issuance and validity of revenue bonds under this chapter shall not be dependent on or affected in any way by proceedings taken, contracts made, acts performed or done in connection with, or in furtherance of any undertaking or loan program by the county authorizing and issuing the revenue bonds, or by the validity of any such proceedings, contracts or acts, nor shall the authorization, issuance and validity of bonds issued under this chapter be dependent in any way upon the due adoption or enactment of any capital program or capital budget ordinance or resolution or upon the continued effectiveness of any appropriation made in any capital budget ordinance or resolution; provided that nothing in this section shall be deemed to permit the application of the proceeds of such bonds to appropriations which have lapsed pursuant to the provisions of law or of a charter. Insofar as the provisions of any other law or charter conflicts with this chapter, this chapter shall be controlling.
HRS § 49-25