Why can a ship itself be sued in an admiralty proceeding?

In admiralty law, a ship can be sued directly through a proceeding in rem because the vessel is legally "personified." This unique practice allows the ship itself to be held responsible for maritime claims, even in situations where the shipowner might not be personally liable.1

A classic example is "compulsory pilotage," where a vessel is required by law to use a state-mandated pilot. If the pilot commits an act of negligence, the shipowner may not be held liable; however, the vessel itself is charged with the fault and becomes subject to an inchoate maritime lien that can be enforced in court.1

Beyond pilotage, in rem proceedings can be initiated for various reasons, including:
* Maritime torts, such as collisions or personal injuries.1
* Salvage services.1
* General average contributions.1
* Breach of certain maritime contracts.1

This mechanism provides a significant advantage to claimants, particularly if the shipowner is insolvent, as the vessel can be arrested or sold to satisfy the judgment.1