Water Industry Act 1991

6 (1) Subject to the provisions of this paragraph, nothing in the relevant sewerage provisions shall authorise a sewerage undertaker, without the consent of the Civil Aviation Authority or, as the case may be, of the airport operator or railway undertakers concerned, to carry out any works along, across or under—

(a) any property of the Civil Aviation Authority;

(b) an airport to which Part V of the [1986 c. 31.] Airports Act 1986 applies; or

(c) any railway of any railway undertakers.

(2) Sub-paragraphs (3) to (7) of paragraph 5 above shall apply for the purposes of this paragraph as they apply for the purposes of sub-paragraph (1) of that paragraph but as if references to the dock undertakers were references, as the case may require, to the Civil Aviation Authority, to the relevant airport operator or to the railway undertakers.