5. Section 2 (preparation and revision of waste disposal plans) shall have effect as if—
(a)after subsection (3)(a)(i) the following sub-paragraphs were inserted—
“(ia)in a case where the plan or modification is prepared by a London waste disposal authority, the Common Council of the City of London or the council of a London borough, the London Waste Regulation Authority, and
(ib)in a case where the plan or modification is prepared by the council of the metropolitan district of Wigan, the Greater Manchester Waste Disposal Authority, and”;
and
(b)in subsections (3)(a)(ii) and (4) after the words “an English county disposal authority” the following words were inserted “or a London waste disposal authority”.