If the Secretary of State is of the opinion—
he may, after consultation with the local authorities concerned, make a scheme under section 63 above designating as an amalgamated registration area the areas of those authorities and making provision accordingly for that amalgamated area.
Any reference in the following provisions of this Chapter to a registration area includes a reference to an amalgamated registration area and, in relation to such an area, "the constituent authorities" means the local authorities whose areas make up the amalgamated area.
A scheme under section 63 above made for an amalgamated registration area—
A scheme under section 63 above made for an amalgamated registration area may contain such incidental, transitional and supplementary provisions as appear to the Secretary of State to be necessary or expedient.