80.—(1) Article 3 of, and Class B of Part 17 of Schedule 2 to, the 1995 Order (which permit certain development carried out by harbour authorities) shall not permit the undertaker to carry out any of the kinds of development specified in Class B.1 of Part 17, even if they are wholly within the limits of a dock, pier or harbour.
(2) Article 3 of the 1995 Order shall not permit the undertaker to carry out the development described in Class D of Part 17 of Schedule 2 to the 1995 Order (use of land by statutory undertakers for the spreading of dredged material).
(3) In their application to development which is not authorised under this Order and is carried out on land which falls to be treated as operational land of the undertaker in respect of its undertaking by virtue of this Order and is within the harbour limits, article 3 of, and Part 17 of Schedule 2 to, the 1995 Order shall have effect as if the planning permission granted by the 1995 Order were subject to the requirements.
(4) Notwithstanding paragraph (3), on the closure date determined under article 82, any planning permission granted by the 1995 Order still existing shall cease to have effect in respect of the development mentioned in paragraph (3), expect in so far as required for the implementation of that article and the application of the requirements relating to that article.