13Without prejudice to the generality of the powers conferred by paragraph 12 above, regulations under that paragraph may in particular provide for the taking into account, for such purposes and in such manner and subject to such conditions as may be prescribed, of contributions paid or credited or deemed to be, or treated as, paid or credited under the 1965 Act or the [1946 c. 67.] National Insurance Act 1946 or any enactment repealed by that Act.