The board may provide for the redemption prior to maturity at the option of the district of any or all of the bonds or other district securities designated in section 32-11-501(2), in such order, by lot or otherwise, at such time, with or without the payment of such premiums not exceeding seven percent of the principal amount of each bond or other security so redeemed, and otherwise upon such terms as may be provided by the board in the resolution authorizing the issuance of the securities or other instrument pertaining thereto.
C.R.S. § 32-11-552