Ala. Code § 33-2-183

The docks facilities revenue bonds and the refunding bonds shall be in such forms and denominations and of such tenor and maturities (either serial or term or a combination thereof), provided that no docks facilities revenue bond or refunding bond shall have a specified maturity date, including sinking fund redemptions, later than 30 years after its date, shall bear such rate or rates of interest (including a zero rate of interest) payable and evidenced in such manner, and may contain other provisions not inconsistent with this article, all as may be provided in the order or orders of the director in which the docks facilities revenue bonds or the refunding bonds, respectively, are authorized to be issued; provided, that no such order shall be valid without the written approval of the Governor.

Notwithstanding any other provision of this article to the contrary, the director may, in connection with the issuance of docks facilities revenue bonds and refunding bonds pursuant to this article, provide by order for places of payment (either within or without the state); registration provisions; exchange privileges; method of delivery; entering into contracts with banks and trust companies located either within or without the state to act as registrars, paying agents, transfer agents, depositories for safekeeping, agents for the delivery and payment of bonds, authenticating agents or otherwise; and covenants for the security and better marketability of the docks facilities revenue bonds and refunding bonds, including but not limited to the establishment of an interest account to be funded with the proceeds of docks facilities revenue bonds or refunding bonds for the payment of interest on such bonds, and the establishment of reserves or sinking funds to secure or to pay such docks facilities revenue bonds or refunding bonds, incident to or necessary or convenient to the purposes of the department and the provision for the investment of such interest accounts or reserves or sinking funds at the direction of the department. The department may department may, in the order or orders of the director under which any of the docks facilities revenue bonds or the refunding bonds are issued, retain an option to redeem all or any thereof at such redemption price or prices and after such notice or notices and on such terms and conditions and at such time or times as may be set forth in the said order or orders and as may be briefly recited on the docks facilities revenue bonds or the refunding bonds with respect to which such option of redemption is retained.