42.—(1) This article applies to any operations or works in the harbour of a statutory undertaker on, under or over tidal waters or land below the level of high water, not being operations or works which are specifically authorised by an enactment.
(2) Subject to paragraph (3), a statutory undertaker must not carry out any operations or works to which this article applies unless it has given notice of its intention to do so to the Commissioners and has supplied the Commissioners with such particulars as they may reasonably require.
(3) Where, in an emergency, it is impracticable to give notice as required by paragraph (2), the statutory undertaker must inform the Commissioners of the operations or works as soon as reasonably practicable.
(4) Any operations or works to which this article applies must be carried out subject to any directions which may from time to time be given by the Commissioners to the statutory undertaker, being directions for the avoidance of danger and the prevention, so far as possible, of interference with navigation in the carrying out of such operations or works.
(5) Any person who, without reasonable excuse, contravenes this article is guilty of an offence and liable on summary conviction to a fine not exceeding level 3 on the standard scale.