(1)So long as sections 35 and 36 of the [1966 c. 6 (N.I.).] National Insurance Act (Northern Ireland) 1966 (graduated retirement benefit) continue in force by virtue of regulations made under Schedule 3 to the [1975 c. 18.] Social Security (Consequential Provisions) Act 1975 or under Schedule 3 to the Consequential Provisions Act, regulations may make provision—
(a)for replacing section 35(4) of the National Insurance Act (Northern Ireland) 1966 (increase of graduated retirement benefit in cases of deferred retirement) with provisions corresponding to those of paragraphs 1 to 3 of Schedule 5 to this Act;
(b)for extending section 36 of that Act (increase of woman’s retirement pension by reference to her late husband’s graduated retirement benefit) to men and their late wives.
(2)This section is without prejudice to any power to modify those sections conferred by Schedule 3 to the Consequential Provisions Act.