Ala. Code § 41-1-9

In any instance where any bond, warrant, note, certificate of indebtedness, or other securities howsoever designated is authorized to be issued by the state, or by any county, municipality, board of education, political subdivision, public instrumentality, public corporation or other public entity howsoever identified; any such security may bear one or more rates of interest, or no interest, or interest may be payable through one or more payments which reflect compound interest computed at specified intervals on accrued but unpaid interest, or through a discount in the sales price for such security equivalent to compound interest on such security for all or part of the term thereof, or through any combination of the foregoing methods of providing for the payment of interest, and any such amounts shall be payable at such time or times as may be provided in the proceedings authorizing any such security, regardless of the requirements of any other provision of law authorizing the issuance of any such security.