The following provisions of this paragraph apply to the master, owner, agent or operator of emergency vessels responding to an emergency and wishing to transit the bridge (and accordingly such persons must comply with any obligation expressed by reference to an emergency vessel).

The provisions of paragraph 3 do not apply to the emergency vessel.

Where possible the emergency vessel must provide as much notice as possible of its required opening of the bridge.

Emergency vessels entering the port from sea and intending to conduct a transit through the bridge are to conduct a marine VHF call with the undertaker on the port's operational marine VHF channel immediately prior to entering the piers at the mouth of the river Yare.

Emergency vessels departing a berth within the river Yare and intending to conduct a transit through the bridge are to conduct a marine VHF call with the undertaker on the port's operational marine VHF channel immediately prior letting go all lines.

Should an emergency vessel request an immediate bridge opening whilst the bridge is already open to conduct a scheduled bridge opening, the undertaker is to ensure the bridge remains open until the emergency vessel has completed its transit and is past and clear.