16.—(1) The relevant authorities and their officers shall co-operate with each other, and generally exercise their functions, so as to facilitate the implementation of this Order and any other relevant provision.
(2) A relevant authority, other than the York Council, shall furnish that council with all such information relating to the authority or its functions as that council may reasonably request for the purpose of implementing this Order or any other relevant provision.
(3) In this article and article 18, “relevant authority” means the County Council, the York Council and the councils of the borough of Harrogate, the districts of Ryedale and Selby and the city of York.