28.—(1) The Council may, after consultation with the Chamber of Shipping in each case of an exercise of the powers, give directions for the purpose of promoting or securing conditions conducive to the ease, convenience or safety of navigation in the harbour and the approaches thereto and, without prejudice to the generality of the foregoing, for any of the following purposes—
(a)for designating areas, routes or channels in the harbour and the approaches thereto which vessels are to use, or refrain from using, for movement or mooring;
(b)for securing that vessels move only at certain times or during certain periods;
(c)for requiring the master of a vessel to give to the harbour master information relating to the vessel reasonably required by the harbour master for the purposes of this paragraph.
(2) Directions given under paragraph (1) above may apply—
(a)to all vessels or to a class of vessels designated, or the designation of which is provided for, in the direction; and
(b)to the whole of the harbour and the approaches thereto, or to a part designated, or the designation of which is provided for, in the direction; and
(c)at all times or at times designated, or the designation of which is provided for, in the direction;
and every direction given under this article shall specify the extent of its application in relation to the matters referred to in sub-paragraphs (a), (b) and (c) above.
(3) The Council may, after consultation with the Chamber of Shipping, revoke or amend directions given under this article.