Idaho Code § 70-2106
All revenue bonds authorized to be issued hereunder may be issued as serial bonds or as term bonds or a combination of both types. All revenue bonds so issued shall be payable solely out of the revenues and receipts derived by the port district from the project provided with the proceeds thereof as may be designated in the proceedings of the commission under which the revenue bonds shall be authorized to be issued, provided that such revenue bonds shall not be secured by the full faith and credit or the taxing power of the state of Idaho, any port district or any other political subdivision of the state of Idaho, and such limitation shall be plainly printed on the face of each such revenue bond. Such revenue bonds may be executed and delivered by the port district at any time and from time to time in such amounts, may be in such form and denominations and of such terms and maturities, may be in fully registered form or in bearer form registrable either as to principal or interest or both, may bear such conversion privileges and be payable in such installments and at such time or times not exceeding forty (40) years from the date thereof, may be payable at such time or times and at such place or places whether within or without the state of Idaho and evidenced in such manner, may bear interest at such rate or rates per annum without regard to any interest rate limitation appearing in any other law, may be executed by the manual or facsimile signatures of such officers of the port district, and may contain such provisions not inconsistent herewith, all as shall be provided in the proceedings of the commission under which the revenue bonds shall be authorized to be issued. If deemed advisable by the commission there may be retained in the proceedings under which any such revenue bonds are authorized to be issued an option to redeem all or any part thereof as may be specified in such proceedings, at such price or prices and after such notice or notices and on such terms and conditions as may be set forth in such proceedings, but nothing herein contained shall be construed to confer on any port district the right or option to redeem any such revenue bonds except as may be provided in the proceedings under which they shall be issued. Any revenue bonds issued hereunder may be sold at public or private sale for such price and in such manner and from time to time as may be determined by the commission, and the port district may pay, but solely and only from the proceeds of any such revenue bonds, all expenses, premiums, and commissions which the commission may deem necessary or advantageous in connection with the issuance thereof. Issuance by any port district of one or more series of revenue bonds for one or more purposes under this act shall not preclude it from issuing other revenue bonds in connection with the same project or any other project or for any other purpose hereunder, but the proceedings whereunder any subsequent bonds may be issued shall recognize and protect any prior pledge made for any prior issue of revenue bonds. Any revenue bonds issued hereunder at any time outstanding may at any time and from time to time be refunded by the issuance of refunding bonds in such amount as the commission may deem necessary but not exceeding an amount sufficient to refund the principal of the bonds so to be refunded, together with any unpaid interest thereon and any premiums, commissions, service fees and other expenses necessary to be paid in connection therewith. Any such refunding may be effected whether the bonds to be refunded shall have matured or shall thereafter mature, either by sale of the refunding bonds and the application of the proceeds thereof for the payment of the bonds to be refunded thereby, or by the exchange of the refunding bonds for the bonds to be refunded thereby with the consent of the holders of the bonds so to be refunded, and regardless of whether or not the bonds to be refunded were issued in connection with the same project or separate projects or for any other purpose hereunder, and regardless of whether or not the revenue bonds proposed to be refunded shall be payable on the same date or different dates or shall be due serially or otherwise. All such revenue bonds and the interest coupons applicable thereto, if any, are hereby made and shall be construed to be negotiable instruments.
Idaho Code § 70-2106