Ala. Code § 11-43D-6

Nothing contained in this chapter, except as specifically provided, shall affect or impair the rights or privileges of officers or employees of the municipality or any office, department, board, or agency existing at the time when this chapter shall take effect, or any provision of law in force at the time when the mayor-council form of government shall be adopted and not inconsistent with the provisions of this chapter, in relation to the personnel, appointment, ranks, grades, tenure of office, promotion, removal, pension, officers, or employees of the municipality or any office, department, board, or agency thereof.