Ala. Code § 22-29-15
All bonds, notes and certificates issued by the authority shall be solely and exclusively obligations of the authority, payable solely from the revenues, income, fees, charges or rent, which may, pursuant to the provisions of this chapter, be pledged to the payment thereof, and no such bonds, notes or certificates shall create an obligation or debt of the state; provided, that an agreement by the authority to make a grant to a local public body for a project shall impose an obligation on the state to make such grant from any funds which are then or may thereafter become available regardless of the funding of the grant by the local public body and subject only to any terms and conditions set forth in such agreement.
Ala. Code § 22-29-15 (1975)