Berth charter. If a vessel was chartered for loading "on the berth", the contract of carriage was called a "berth charter". The exact nature of the cargo to be loaded is not known in advance; it being entirely up to the charterers to book the required quantity of cargo. If unsuccessful in booking a cargo, they are responsible for payment of any dead freight. Now a berth charter is a voyage charter where the vessel is chartered to the cargo to a particular berth as the destination.