The copy of the notice required to be served by paragraph 4(5) of Schedule 8 on a local planning authority shall, in the case of a proposal that a government department should give a direction under section 90(1) or that development should be carried out by or on behalf of a government department, be served on the local planning authority who, in the opinion of the Secretary of State, would have been responsible for dealing with an application for planning permission for the development in question if such an application had fallen to be made.

References in paragraphs 3(2) and 5(1) of that Schedule to the local planning authority shall be construed as references to the local planning authority on whom that copy is required to be served.