4. Where a notice is issued under paragraph (2), paragraph (3) does not affect the following insofar as they apply to NPG—
(a)the operation of the following articles of this Order—
(i)article 3(3)(b), (5) and (6);
(ii)article 4(2);
(iii)article 5;
(iv)article 6; and
(b)works done and actions undertaken prior to the date specified in that notice.