Alabama Code Title 33. Navigation and Watercourses § 33-2-194

For the benefit of the holders from time to time of the docks facilities revenue bonds and the refunding bonds herein authorized, and in order to secure maximum prices for said bonds, and in consideration of the purchase and acceptance of said bonds by such holders, the department may, in any order of the director authorizing the issuance of docks facilities revenue bonds or refunding bonds, irrevocably covenant and agree that while any of such docks facilities revenue bonds or refunding bonds are outstanding and unpaid, all charges, including special handling and processing charges, tariffs, surcharges, and other fees of the department shall be maintained at such levels as the department shall specify.