The provisions of this Act shall have effect without prejudice to the exercise of any power conferred by section 67 of the M1Local Government Act 1972 (consequential and transitional arrangements relating to Part IV), section 252 of that Act (general power to adapt Acts and instruments) or section 254 of that Act (consequential and supplementary provision); and any such power which, if this Act had not been passed, would have been exercisable in relation to an enactment repealed by this Act shall be exercisable in the like manner and to the like extent in relation to the corresponding provision (if any) of this Act.