Ala. Code § 35-2-81

Before being recorded, all such photographs or maps must have been presented to the county engineer of the county where the land area represented is located. Upon his being satisfied as to the purpose of the recording of such map or photograph and as to the information inscribed thereon, he shall note his approval and affix thereto his signature. This procedure shall constitute all the requirements necessary for recording; and, after the approval of the county engineer, the map or photograph shall be received and recorded by the appropriate probate judge without any charge or fee. After recording, such maps or photographs may be lawfully used as references in easements or other instruments of conveyance.