Ala. Code § 11-101A-13
All securities of an authority shall be signed in the name and on behalf of the authority by the chair or vice-chair of the board, and the seal of the authority shall be affixed thereto and attested by its secretary or an assistant secretary. Notwithstanding the foregoing, a facsimile of the signature of one or both of the officers whose signature will appear on the securities may be imprinted or otherwise reproduced on any thereof in lieu of manually signing the same, but in the event both signatures are imprinted or otherwise reproduced thereon in facsimile, the securities shall be authenticated on behalf of the registrar therefor by a manual signature. A facsimile of the seal of the authority may be imprinted, or otherwise reproduced, on any securities in lieu of being manually affixed thereto. If after any securities shall be so signed, whether manually or by facsimile, and any officer shall, for any reason, vacate office, the securities so signed may nevertheless be delivered at any time thereafter as the act and deed of the authority.
Ala. Code § 11-101A-13 (1975)