If said ordinance be adopted by the governing body of any municipality to which this chapter applies, then:
(1) Within 90 days thereafter, the commission board of such municipality shall adopt an ordinance,
a. Establishing the boundaries of the seven-council districts herein provided for, and
b. Establishing the salaries to be paid to the mayor and council members to be elected at the first election to be held hereunder;
(2) The commission board shall take such steps as are necessary to comply with the Federal Voting Rights Act of 1965, as amended;
(3) After receipt of notification of compliance with the Federal Voting Rights Act of 1965, as amended, the mayor or other chief executive officer of the municipality shall give notice that an election for mayor and all the members of the city council will be held at the next regular municipal election as required and provided for by the election laws of the state of Alabama, which shall be the same date at which the regular municipal elections for the commission board would otherwise be held, being the second Tuesday in July, 1985, and if necessary, run-off elections on the third Tuesday next thereafter as provided by law, and such elections shall be so held wherein a mayor shall be elected at large and a seven-member council shall be elected from single-member districts as provided by this chapter;
(4) The municipality shall, after said election and the qualification and assumption of office of the council and mayor as provided in this chapter, be deemed to have adopted the form of government as herein provided and thereafter be governed by a mayor elected at large and a seven-member council elected from single-member districts pursuant to this chapter, which municipality shall have the same powers and duties as herein enumerated and as other mayor-council municipalities organized under Title 11, and any other powers and duties not inconsistent with this chapter which may be now or hereafter granted to such municipality.