Section 76.17 - Powers of public issuers1. A public body authorized to issue bonds may elect to issue bonds bearing a variable or fluctuating rate of interest which is determined on one or more intervals by reference to an index or standard, or as fixed by an interest rate indexing or remarketing agent retained by the issuer of the bonds. A public issuer of public bonds may provide for additional security or liquidity, enter into agreements for, and expend funds for policies of insurance, letters of credit, lines of credit, or other forms of security issued by financial institutions for the payment of principal, premium, if any, and interest on the bonds. A public issuer of public bonds may also enter into contracts and pay for the services of underwriters, interest rate indexing agents, remarketing agents, trustees, financial consultants, depositories, and other services as determined by the governing body. In the case of general obligation bonds, fees for the services and costs of additional security and liquidity shall be considered incurred in lieu of interest and may be levied through the fund for payment of debt service on the bonds. Bonds issued under this section may be sold at public or private sale as determined by the governing body.2. This section provides alternative and additional power for the issuance of bonds and is not an amendment to any other statute or a limitation upon powers under any other law.3. A public issuer of public bonds may provide for the purchase of bonds before their maturity and the remarketing of purchased bonds without causing the redemption of the purchased bonds.