United States admiralty law

Admiralty law in the United States is a matter of federal law.

In theory, any general jurisdiction court may hear cases involving admiralty law. Courts of limited jurisdiction, for example, small claims courts, may not hear maritime law cases.

A state court hearing an admiralty or maritime case is required to apply the admiralty and maritime law, even if it conflicts with the law of the state, under a doctrine known as the "reverse-Erie doctrine." The Erie doctrine, derived from Erie Railroad Co. v. Tompkins, directs that federal courts hearing state actions must apply state law. The "reverse-Erie doctrine" directs that state courts hearing admiralty cases must apply federal admiralty law. This distinction is critical in some cases.

For instance, U.S. maritime law recognizes the concept of joint and several liability among tortfeasors, while many states do not. Under joint and several liability, where two or more people create a single injury or loss, all are equally liable, even if they only contributed a small amount. A state court hearing an admiralty case would be required to apply the doctrine of joint and several liability even if state law does not contemplate the concept.

One of the unique aspects of maritime law is the ability of a shipowner to limit its liability to the value of a ship after a major accident. An example of the use of the Limitation Act is the sinking of the RMS Titanic in 1912. Even though the Titanic had never been to the United States, upon her sinking the owners rushed into the federal courts in New York to file a limitation of liability proceeding. The Limitation Act provides that if an accident happens due to a circumstance which is beyond the "privity and knowledge" of the ship's owners, the owners can limit their liability to the value of the ship after it sinks.

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