The governing body of any Class 5 municipality operating under a United States district court consent decree approved by the court in the case of Tolbert and Petty vs. the City of Bessemer, Civil Action No. 75-297, by a majority vote of the members thereof may adopt an ordinance establishing a mayor-council form of government pursuant to the terms and conditions of this chapter. Any municipality desiring to adopt a form of government provided for herein shall adopt an ordinance in substantially the following form:
"BE IT ORDAINED BY THE COUNCIL OF THE CITY OF _____ AS FOLLOWS:
"Section 1. That pursuant to Act 89-750 of the 1989 Regular Session of the Legislature, the mayor-council form of government pursuant to the United States district court decree agreed to by the parties and approved by the court on the 18th day of October, 1985, in the case of Tolbert and Petty vs. the City of Bessemer, under which the municipality has operated, shall be abandoned on the 1st day of October, 1990.
"Section 2. The form of government as described by Act No. 89-750 of the 1989 Regular Session of the Legislature providing for a mayor-council form of government with the mayor and one council member elected at large and six council members from single member districts, is hereby adopted as the form of government for the City of _____ , pursuant to all the terms and conditions contained in said act.
"Section 3. This ordinance shall take effect as provided by law, and be implemented pursuant to said Act No. 89-750."