(a) given before the commencement day, under paragraph (a) (the old provision ) of the conditions column in item 2.17 of the table in Part 2 of Schedule 4 as in force immediately before that day; and
(b) not withdrawn or otherwise ceased to have effect (however described) before the commencement day;
has effect on and after the commencement day as if it had been given under paragraph (b) (the new provision ) of the devices column in that item (and a statement given in the notice under a subparagraph of the old provision has effect on and after the commencement day as if it had been given under the corresponding subparagraph of the new provision).
(2) A determination by the Secretary:
(a) as referred to in paragraph (e) of the conditions column in item 2.17 of the table in Part 2 of Schedule 4 as in force immediately before that day; and
(b) in force immediately before the commencement day;
has effect on and after the commencement day as if it were a determination referred to in paragraph (d) of the devices column in that item.