(1) Caldey Island and St. Margaret’s Island in the county of Dyfed are in this Act together referred to as “ Caldey ” . . ..
(2) St. Margaret’s Island (as well as Caldey Island) shall be part of the electoral division of Tenby for the purposes of the election of councillors for that county; and Caldey shall be part of—
(a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(b) the parliamentary constituency of Pembroke; and
(c) the European Parliamentary constituency of Mid and West Wales.
(3) Caldey shall be a parliamentary polling district and a polling district for the purposes of the election of county . . .councillors.
(4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .