(a) The bonds or any part of them may be refunded at or before their maturity by the issuance of refunding revenue bonds of the state if in the opinion of the committee refunding is advantageous to and in the best interests of the state and its inhabitants.

(b) The issuance of refunding bonds need not be authorized by an Act of the legislature, and the committee shall adopt the resolution or resolutions and prepare all other documents and proceedings necessary for the issuance, exchange, or sale, and delivery of such bonds. All provisions of AS 37.15.410 - 37.15.550 applicable to revenue bonds are applicable to the refunding bonds and to the issuance, sale, or exchange of them, except as otherwise provided in this section.

(c) Refunding bonds may be issued in a principal amount sufficient to provide funds for the payment of all bonds to be refunded by them, and, in addition, for the payment of all expenses incident to the calling, retiring, or paying of the outstanding bonds, and the issuance of the refunding bonds. These expenses include the difference in amount between the par value of the refunding bonds and any amount less than par for which the refunding bonds are sold, any amount necessary to be made available for the payment of interest upon the refunding bonds from the date of sale of them to the date of payment of the bonds to be refunded or to the date upon which the bonds to be refunded will be paid pursuant to the call of them or agreement with the holders of them, and the premium, if any, necessary to be paid in order to call or retire the outstanding bonds and the interest accruing on them to the date of the call or retirement.