(1) In this Act, unless the context otherwise requires, the following expressions have the following meanings respectively, that is to say—
“ the appropriate Minister or Ministers ” and “ the Ministers ” have the meanings assigned to them by section 1 above;
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“ county ”, “ district ”, “ county council ”, and “ district council ”, mean respectively a county, district, county council and district council established by the 1972 Act;
“ development corporation ” means a development corporation established under the New Towns Act 1965 or any Act replaced by that Act;
“ existing local authority ” means a local authority within the meaning of the Local Government Act 1933;
“ joint water board ” and “ joint water committee ” mean respectively a joint board and a joint committee which has been constituted under section 9 of the Water Act 1945 and on which a statutory water company is represented;
“ land drainage ” includes defence against water (including sea water), irrigation other than spray irrigation, warping and the provision of flood warning systems, and “ land drainage functions ” shall be construed accordingly;
“ local authority ” means a county council, . . . a district council, a London borough council or the Common Council of the City of London;
“ local land drainage committee ” and “ regional land drainage committee ”mean respectively the committees referred to by those names in sections 2 and 4 respectively of the Land Drainage Act 1976 ;
“ local land drainage district ” means a local land drainage district established or continued under section 4 of the Land Drainage Act 1976 and any part of a water authority area which is to be treated as a local land drainage district for the purposes of sections 45 to 49 of that Act (in accordance with section 89(2) of that Act) ;
“ local statutory provision ” means a provision of a local Act (including an Act confirming a provisional order) or a provision of a public general Act passed with respect to some area or a provision of an instrument made under any such local or public general Act or of an instrument in the nature of a local enactment made under any other Act;
“ London excluded area ” has the meaning given by section 116 of the Land Drainage Act 1976;
“ the 1972 Act ” means the Local Government Act 1972;
“ public authority ” includes a statutory water company;
“ public sewer ” has the same meaning as in the Public Health Act 1936 and “ private sewer ” shall be construed accordingly;
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“ river authority ”, “ underground strata ”, “ inland water ”, “ watercourse ” and “ water resources ” have the same meanings respectively as in the Water Resources Act 1963;
“ statutory water company ” means a company authorised immediately before the passing of this Act by any local statutory provision to supply water or a company in whom the assets of any company so authorised have subsequently become vested;
“ statutory water undertakers ” has the meaning assigned to it by section 11(6) above;
“ supply of water in bulk ” and “ water fittings ” have the same meanings as in the Water Act 1945;
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(3) Except in so far as the context otherwise requires, any reference in this Act to an enactment shall be construed as a reference to that enactment as amended, applied or extended by or under any other enactment, including this Act.