The provisions of this Part of this Act, except this section, shall come into force in accordance with the following provisions of this section.
A council shall not pass a resolution in pursuance of the foregoing subsection unless they have—
If after a council has passed a resolution in pursuance of subsection (2) of this section the Act of 1847 comes into force for any part of the area of the council for which it was not in force when the council passed the resolution, the council may pass a resolution in accordance with the foregoing provisions of this section in respect of that part as if that part were included in the relevant area for the purposes of subsection (2) of this section.