1 Constitutional provisions.
(1) It is hereby recognized and declared that the part of Ireland heretofore known as Eire ceased, as from the eighteenth day of April, nineteen hundred and forty-nine, to be part of His Majesty's dominions.
(2) It is hereby declared that Northern Ireland remains part of His Majesty's dominions and of the United Kingdom and it is hereby affirmed that in no event will Northern Ireland or any part thereof cease to be part of His Majesty's dominions and of the United Kingdom without the consent of the Parliament of Northern Ireland.
(3) The part of Ireland referred to in subsection (1) of this section is hereafter in this Act referred to, and may in any Act, enactment or instrument passed or made after the passing of this Act be referred to, by the name attributed thereto by the law thereof, that is to say, as the Republic of Ireland.