amend section 7(2) (matters that are customs revenue matters) so as to add, modify or remove a matter;

amend section 7(3) (functions to which that section does not apply) so as to add, modify or remove a function;

make provision for that section to apply in relation to a function conferred on the Commissioners for Her Majesty's Revenue and Customs by an enactment passed or made after the end of the session in which this Act is passed;

modify any enactment (including an enactment passed or made after the passing of this Act) in consequence of provision made under any of paragraphs (a) to (c).