18.—(1) Subject to article 4(3) and this paragraph, any function of the Harbour Authority or any officer of the Harbour Authority, whether conferred by or under this Order or any other enactment, shall be subject to—
(a)any enactment relating to the PLA;
(b)any byelaw, direction or other requirement made by the PLA or its Harbour Master under any enactment; and
(c)any other exercise by the PLA or its Harbour Master of any function conferred by or under any enactment.
(2) The Harbour Authority or Dockmaster shall not take any action in the river outside the area of jurisdiction under sections 57, 65 and 69 of the 1847 Act as incorporated by article 3 (incorporation of the Harbours, Docks and Piers Clauses Act 1847) except with the consent of the Harbour Master, which shall not be unreasonably withheld.
(3) The Dockmaster shall not give or enforce any special direction to any vessel under section 52 of the 1847 Act, as incorporated by article 3 (incorporation of the Harbours, Docks and Piers Clauses Act 1847), if to do so would conflict with a special direction given to the same vessel by the Harbour Master.
(4) That part of the port premises not in the river shall not be “port premises” for the purposes of the 1968 Act.
(5) The PLA shall consult the Harbour Authority before making any byelaw under the 1968 Act which directly applies to or which could directly affect the construction, operation or maintenance of London Gateway Port or the port premises.
(6) The PLA or the Harbour Master (as appropriate) shall consult the Harbour Authority before giving any general direction under the 1968 Act which directly affects the construction, operation or maintenance of London Gateway Port or the port premises.