For every region, islands area and district there shall be a council consisting of a chairman and councillors, and each such council shall have all such functions as are vested in them by this Act or otherwise.
Each such council shall be a body corporate by the name “The Regional Council”, “The Islands Council” or “The District Council”, as the case may be, with the addition of the name of the particular region, islands area or district, and shall have a common seal.