(1) The board of commissioners of a county that has adopted a charter under 1966 PA 293, MCL 45.501 to 45.521, shall not proceed under section 3 or 4 unless requested by the county executive or chief administrative officer.

    (2) The board of commissioners of a county that has adopted an optional unified form of county government under 1973 PA 139, MCL 45.551 to 45.573, shall not proceed under section 3 or 4 unless requested by the county executive or county manager.