A reference in this Act to the Registrar is a reference to:
(a) if only one Commonwealth body is appointed as Registrar under section 1270--that body; or
(b) if more than one Commonwealth body is appointed under that section:
(i) if the reference relates to one or more particular functions or powers--any Commonwealth body so appointed with any of those particular functions or powers; or
(ii) otherwise--any of the Commonwealth bodies appointed under that section.