The Secretary of State may by order make—
such amendments of this Act as appear to him appropriate for the purpose of assimilating any provision connected with the formation or recording of civil partnerships in England and Wales to any provision made . . . in relation to civil marriage in England and Wales, and
such amendments of other enactments and of subordinate legislation as appear to him appropriate in consequence of any amendments made under paragraph (a).
“Civil marriage” means marriage solemnised otherwise than according to the rites of the Church of England or any other religious usages.
“Amendment” includes repeal or revocation.
“Subordinate legislation” has the same meaning as in the Interpretation Act 1978 (c. 30).