
Cases involving admiralty and maritime law pertain to disputes and claims arising from contracts and torts of the high seas or other navigable waters. These cases are heard in federal courts, which have exclusive jurisdiction over admiralty and maritime matters. The Constitution grants the Supreme Court the power to hear these cases, which often involve issues of national importance, such as commerce, international relations, and the rights of foreign citizens. The federal courts follow maritime law, conduct trials without juries, and handle cases in rem, where actions are filed against vessels rather than individuals. State courts may also have jurisdiction in admiralty and maritime cases, but their decisions must adhere to federal maritime laws.
| Characteristics | Values |
|---|---|
| Cases covered | Acts committed on the high seas or other navigable waters |
| Contracts and transactions connected with shipping employed on the seas or navigable waters | |
| Seizures under laws of impost, navigation or trade of the United States | |
| Cases involving maritime injuries and worker's rights | |
| Shipping accidents where vessels are damaged or cargo is lost | |
| Claims for salvage awards | |
| Suits by seamen to recover unpaid wages | |
| Cases involving maritime labour regulation, commercial shipping, and salvage | |
| Cases involving contracts and torts | |
| Cases involving police regulations of shipping, harbors, fishing, and the like | |
| Cases involving the seizure and forfeiture of a vessel for violating federal law | |
| Cases involving the wrongful death of a nonseafarer in state territorial waters | |
| Cases involving the rights of foreign citizens | |
| Cases involving international prize law | |
| Cases involving the interpretation of the territorial and conceptual scope of admiralty and maritime jurisdiction |
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What You'll Learn

Admiralty and maritime jurisdiction
The terms '"admiralty law" and "admiralty courts" originated in England, where maritime cases were tried in admiralty courts separate from common law courts. In England, admiralty courts handled specific disputes and claims arising from contracts and torts of the high seas. These claims involved subjects like lost or spoiled cargo, usually between a business owner who contracted for a shipment and a shipowner who failed to deliver those goods.
In the United States, admiralty and maritime jurisdiction comprises two types of cases: (1) those involving acts committed on the high seas or other navigable waters, and (2) those involving contracts and transactions connected with shipping employed on the seas or navigable waters. The Constitution grants the Supreme Court the power to hear cases involving admiralty and maritime jurisdiction, and federal courts have admiralty or maritime jurisdiction.
The federal admiralty courts follow the maritime body of law, operate by their own set of procedures, conduct trials without juries, and handle many cases "in rem," which means actions are filed against vessels themselves, rather than their individual owners. State courts may also have jurisdiction in cases involving admiralty and maritime law, but decisions must follow federal maritime laws. This "concurrent jurisdiction" allows people to seek certain legal remedies under state law that may not be available from the federal court.
Maritime law applies on vessels in navigable waters. Cases involving maritime matters will almost always fall under admiralty court jurisdiction. Examples of cases handled in these federal maritime courts include shipping accidents where vessels are damaged or cargo is lost, and a maritime court can take action to arrest a ship in cases where a significant claim has been made against the vessel.
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Shipping and other transactions
Admiralty law and courts originated in England, where maritime cases were tried separately from common law courts. The English Admiralty Court was a common law court, but it was distinct from the mainstream King's Bench. It handled specific disputes and claims arising from contracts and torts of the high seas, such as lost or spoiled cargo.
In the US, admiralty law became part of the legal system after the adoption of the US Constitution in 1789. The Judiciary Act of 1789 granted district courts exclusive jurisdiction in civil cases in admiralty and maritime matters. The federal courts exercise admiralty jurisdiction as maritime suits often involved questions of national importance, including commerce, international relations, and the rights of foreign citizens.
Shipping accidents and disputes are a common feature of admiralty and maritime law. For example, a business owner who contracted for a shipment might sue a shipowner for failing to deliver the goods. In such cases, a maritime court can take action to arrest the ship, requiring the owner to post a significant bond to recover their vessel.
Other transactions covered by admiralty and maritime law include salvage awards, where individuals who save a ship in peril or recover a lost ship are compensated. Additionally, admiralty law covers contract disputes, such as suits by seamen to recover unpaid wages or enforce other worker rights.
Admiralty and maritime law also govern commercial shipping and maritime labour regulations, including matters of maritime safety and security. For example, merchant vessels transiting areas of increased pirate activity are advised to implement self-protective measures in accordance with best practices agreed upon by the industry and endorsed by organisations like the NATO Shipping Centre.
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Admiralty courts
The establishment of admiralty courts and the development of maritime law have been influenced by the need to promote commerce and resolve disputes between states. The Philadelphia Convention, for example, aimed to remove obstacles caused by diverse local rules and establish a uniform body of maritime law. The Constitution grants the Supreme Court the power to hear cases involving admiralty and maritime jurisdiction, and this has been interpreted broadly by the federal circuit courts. The specific jurisdiction of admiralty courts can vary depending on the country and legal system in question, with federal courts in the US, for instance, having exclusive jurisdiction over prize cases and the seizure and forfeiture of vessels for violating federal law.
In summary, admiralty courts are specialised tribunals that deal with legal matters pertaining to navigation, shipping, and other maritime activities. They operate under unique procedures and have a long history, with their jurisdiction and authority evolving over time to meet the needs of commerce and international relations.
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Maritime labour regulation
Maritime law, also known as admiralty law, deals with acts and transactions at sea or on other navigable waters. In England, "admiralty" referred to local cases involving police regulations of shipping, harbors, fishing, and similar topics, while "maritime" referred to cases arising on the high seas. In the United States, a broader conception of admiralty and maritime jurisdiction emerged, with the Supreme Court empowered to hear cases involving acts and transactions on the high seas or other navigable waters, including shipping and related contracts.
The Maritime Labour Convention (MLC) is a key component of maritime labour regulation. Adopted in 2006, it sets out the minimum rights that seafarers should expect and is considered a seafarer's bill of rights. The MLC covers various aspects, including wages, rest hours, leave, repatriation, manning, food and catering, medical care, and health and safety. For example, the MLC stipulates that wages should be paid at least monthly and transferable to family if desired, and that rest hours should be implemented in national legislation, with a maximum of 14 hours of work in any 24-hour period.
The MLC also addresses fundamental rights relating to work, such as freedom of association, collective bargaining, elimination of forced labour and child labour, and non-discrimination in employment. It requires governments to ensure that their laws and regulations respect these rights. To enforce these rights, the MLC has established an inspection and certification regime, with ships of 500 gross tons or more operating internationally requiring a maritime labour certificate and a declaration of maritime labour compliance from their flag state.
The MLC sits alongside International Maritime Organization (IMO) regulations, which focus on the vessel and its operation. The MLC was introduced in recognition of the unique nature of the shipping industry, where seafarers can be exempted from national labour laws. As of June 2025, the MLC has been ratified by 110 countries, including major flag states.
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Salvage cases
Admiralty and maritime law covers cases involving the high seas or other navigable waters within the United States, including shipping and other transactions on those waters. The Constitution grants the Supreme Court the power to hear such cases.
Admiralty and maritime jurisdiction comprises two types of cases: those involving acts committed on the high seas or other navigable waters, and those involving contracts and transactions connected with shipping employed on the seas or navigable waters.
- A marine peril placed the property at risk or destruction
- Salvage service wasn't required by duty or contract – it was voluntarily rendered
- Salvage efforts were successful, in whole or in part
There is no law that sets forth how much a salvor is entitled to recover after maritime salvage unless it is classified as contract salvage.
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Frequently asked questions
Admiralty law and maritime law are closely related but not synonyms. Admiralty law originated in England and handled specific disputes and claims arising from contracts and torts of the high seas. Maritime law refers to the expansion of legal protections to deal with claims relating to the hazards of ocean travel or personal injuries sustained while working on a vessel. In the US, the terms are now used interchangeably.
Cases involving admiralty and maritime law include shipping accidents where vessels are damaged or cargo is lost, and suits by seamen to recover unpaid wages.
The jurisdiction of admiralty and maritime law is granted in Article III, Section 2 of the US Constitution. Federal courts exercise admiralty jurisdiction, though state courts may also have jurisdiction in cases involving admiralty and maritime law.


























