Subject to the provisions of any order under this section, nothing in this Act shall require or authorise any function, duty or power to be carried out, performed or exercised in relation to the Isles of Scilly by the NRA or any relevant undertaker; and references in the preceding provisions of this Act to England and Wales shall not include references to those Isles.

The Secretary of State may, on the application of the Council of the Isles of Scilly, by order make provision with respect to the carrying out in those Isles of functions falling under this Act to be carried out in relation to other parts of England and Wales by the NRA or by a relevant undertaker.

Without prejudice to the generality of the power conferred by subsection (2) above, an order under this section may apply any provision of this Act, of the [1991 c. 60.] Water Consolidation (Consequential Provisions) Act 1991 or of the [1989 c. 15.] Water Act 1989 in relation to the Isles of Scilly with or without modifications.

The power of the Secretary of State to make an order under this section shall be exercisable by statutory instrument subject to annulment in pursuance of a resolution of either House of Parliament.

Chapter IV of Part III of this Act, except section 90, shall apply to the Isles of Scilly as if the Council of the Isles of Scilly were a water undertaker and the Isles were the area of the undertaker.

The exception of section 90 above from the provisions of subsection (6) above shall be without prejudice to the power to make provision by an order under this section in relation to that section.