Ala. Code § 11-11-6
Any such county may from time to time sell and issue refunding warrants for the purpose of refunding the principal of outstanding warrants of that county, the interest accrued to the date of the refunding on the outstanding warrants to be refunded and any premium necessary to redeem the outstanding warrants to be refunded, whether or not the principal of the outstanding warrants to be refunded shall have matured at the time of the issuance of the refunding warrants and regardless of whether the outstanding warrants to be refunded shall be subject to redemption by the county prior to maturity and regardless also of whether the outstanding warrants to be refunded, if subject to redemption prior to maturity at the option of the county, have been or are to be called for redemption; provided, that nothing contained in this chapter shall be construed to require the holders of any such outstanding warrants to surrender them for redemption prior to their maturity unless they are by their terms subject to redemption prior to maturity at the option of the county and unless they are duly called for redemption pursuant to their terms.
Ala. Code § 11-11-6 (1975)