24.—(1) Article 4 applies to a removal activity carried on by a person referred to in paragraph (2) for the purpose of removing anything causing or likely to cause obstruction or danger to navigation.
(2) The persons are—
(a)a conservancy authority;
(b)a harbour authority;
(c)a lighthouse authority; or
(d)a navigation authority.
(3) In paragraph (2)—
“conservancy authority” has the meaning given by section 313(1) of the Merchant Shipping Act 1995(1); and
“navigation authority” means any person having powers under any enactment or statutory provision to work or maintain a canal or other inland navigation, including a navigation in tidal water.
1995 c. 21. The definition of ‘harbour authority’ was substituted by the Merchant Shipping and Maritime Security Act 1997 (c. 28), section 29(1) and Schedule 6, paragraph 19(2)(a).