imposed by F2 . . . F3, the British Railways Board or the British Waterways Board at a harbour not specified in Schedule 9 to the M1Transport Act 1962;

imposed at a harbour owned or managed by a person carrying on an inland waterway undertaking to which provisions of section 43 of that Act apply by virtue of section 52(2) thereof; or

imposed at a harbour owned or managed by a person carrying on an undertaking all or any of the charges of which are, under the statutory provisions relating to the undertaking, subject to revision by the Minister and some other Minister acting together.