Parliament of Australia

“ In this Act, “the United Kingdom” means the United
Kingdom of Great Britain and Northern Ireland.
Assent to adoption of Royal Style and Titles in relation
to Australia.
4.— (1.) The assent of the Parliament is hereby given to the
adoption by Her Majesty, for use in relation to the Commonwealth
of Australia and its Territories, in lieu of the Style and Titles at
present appertaining to the Crown, of the Style and Titles set forth
in the Schedule to this Act, and to the issue for that purpose by
Her Majesty of Her Royal Proclamation under such seal as Her
Majesty by Warrant appoints. ”

“ Commonwealth relationship, it would be in accord with the established
constitutional position that each member country should use for its
own purposes a form of the Royal Style and Titles which suits its own
particular circumstances but retains a substantial element which is
common to all ”