Revision of the regional development plan.

If the Government, at any time, after a regional development plan has been published in the Offical Gazette under section 18, but at least once in five years therefrom, is of the opinion that a revision of such regional development plan is necessary, it shal direct the Chief Town Planner to undertake the revision of the regional development plan and thereupon the foregoing provisions of this Act relating to the preparation and approval of the regional development plan shall, as far as may be, apply to the revision of a regional development plan under this section.