Ala. Code § 11-42-122: Execution, Approval, and Confirmation of Agreement as to Terms of Annexation and Merger.

If the commission agrees upon terms of annexation and merger, such agreement shall be reduced to writing and signed in triplicate by the commissioners or a majority thereof, and one of the triplicates of the agreement shall be presented to the council or governing body of each city or town, and if the council or other governing body of each city or town approves of the agreement reached by the commission, the council or governing body of each city or town shall pass a resolution confirming such agreement, which resolution shall be spread upon the minutes of the proceedings of such council or governing body, and the mayor of each city or town shall notify the mayor of the other city or town of the confirmation of the agreement by the council or governing body of the city or town of which he is mayor.