““the Scheme of Operation” means the Scheme of Operation having effect from time to  time under article 41 (operation of the new bridge) of the Order”; and  without the prior consent of the new bridge undertaker.  37B.  A master of a vessel must observe and comply with the river traffic control signal  lights exhibited from the new bridge and follow any instructions issued by the new bridge  undertaker.  37C.  A master of a vessel approaching or departing the new bridge must make every  reasonable effort to maintain continuous contact with the new bridge undertaker within the  new bridge control building on VHF channel 14 or (if this becomes obsolete) such other  means of communication instructed by the new bridge undertaker.  37D.  A master of a vessel awaiting passage under the new bridge must—  37E.  Unless otherwise directed by the harbour master, a master of a vessel must direct the  vessel to pass under the new bridge by navigating between the two bridge piers which are  within Lake Lothing, and must not allow the vessel to pass between a pier and the nearest  quay wall of Lowestoft Harbour.  37F.  A master of a vessel which has been involved in a collision with the new bridge  must, as soon as reasonably practicable, report the occurrence to the new bridge undertaker  and as soon as reasonably practicable thereafter provide the new bridge undertaker with  details of the collision in writing.”.  (6) The harbour authority must not—  37A.  A master of a vessel must not moor the vessel—  “PART IVA  NEW BRIDGE CONTROLS ON VESSELS  Mooring of vessels  Observation of signals and communications  Passage of vessels under the new bridge  Collision with the new bridge  38 (b) make byelaws which affect the new bridge, the new bridge infrastructure or impede  operation of the new bridge in accordance with the Scheme of Operation,  (a) amend or revoke the byelaws inserted into the Lowestoft Harbour Byelaws 1993 by  paragraph (5); or  (c) ensure that that the vessel does not advance beyond the outer edge of the fenders  surrounding the new bridge until instructed to proceed by the new bridge  undertaker.  (b) give transiting vessels sufficient room to manoeuvre; and  (a) stay clear of the centre channel of Lake Lothing;  (a) to any pier or any other part of the new bridge or the new bridge infrastructure; or  (b) in the vicinity of the new bridge if to do so might damage the new bridge or the  new bridge infrastructure, or impede its operation in accordance with the Scheme  of Operation,  (b) after Part IV (Conduct of Persons on Harbour) insert— 