4. After regulation 3, insert—
3A.—(1) The Secretary of State may by regulations amend Schedule 1A where the Secretary of State considers it necessary to do so in order to take technical progress into account.
(2) The power to make regulations made under paragraph (1) includes power—
(a)to make different provisions for different cases; and
(b)to make such supplemental, consequential and transitional provisions as the Secretary of State considers appropriate.
(3) Regulations made under this regulation are to be made by statutory instrument subject to annulment in pursuance of a resolution of either House of Parliament.”.