(1)It is hereby declared that (subject to subsection (2) of the foregoing section) this Act extends to Northern Ireland.
(2)For the purposes of section six of the [10 & 11 Geo. 5. c. 67.] Government of Ireland Act, 1920, this Act shall, so far as it relates to matters within the power of the Parliament of Northern Ireland, be deemed to be an Act passed before the appointed day within the meaning of that section.
(3)This Act, so far as it amends any enactment which extends to the Isle of Man or to any of the Channel Islands, or which applies in relation to persons of or belonging to any such island, shall extend to that island or, as the case may be, shall apply in like manner in relation to those persons.