Subject to subsection (2), where any local enactment provides for any matter which is also provided for by any provision of this Act or of any order or regulations made under this Act, the provisions of this Act, or as the case may be, of that order or those regulations, shall have effect in substitution for the local enactment, which shall cease to have effect.

The Secretary of State may by order except from the operation of subsection (1) such local enactments as may be specified in the order and direct that corresponding provisions of this Act or of any order or regulations made under this Act, shall not have effect in the areas in which the specified local enactments have effect.

If it appears to the Secretary of State that any local enactment not being an enactment which has ceased to have effect by virtue of subsection (1), is inconsistent with any provision of this Act or that any order or regulations made under this Act, or is no longer required, or regulations to be amended, having regard to any such provision, order or regulation, he may by order repeal or amend the local enactment as he may consider appropriate.