Seamen injured aboard ship have three possible sources of compensation: the principle of maintenance and cure, the doctrine of unseaworthiness, and the Jones Act. The principle of maintenance and cure requires a shipowner to both pay for an injured seaman's medical treatment until maximum medical recovery (MMR) is obtained and provide basic living expenses until completion of the voyage, even if the seaman is no longer aboard ship. The seaman is entitled to maintenance and cure as of right, unless he was injured due to his own willful gross negligence. It is similar in some ways to workers' compensation.
The doctrine of unseaworthiness makes a shipowner liable if a seaman is injured because the ship, or any appliance of the ship, is "unseaworthy," meaning defective in some way. The Jones Act allows a sailor, or one in privity to him, to sue the shipowner in tort for personal injury or wrongful death, with trial by jury. The Jones Act incorporates the Federal Employers Liability Act (FELA), which governs injuries to railway workers, and is similar to the Coal Miners Act. A shipowner is liable to a seaman in the same way a railroad operator is to its employees who are injured due to the negligence of the employer. The statute of limitation is three years.
Not every worker injured onboard a vessel is a "seaman" entitled to the protections offered by the Jones Act, doctrine of unseaworthiness, and principle of maintenance and cure. To be considered a seaman, a worker must generally spend 30% or more of his working hours onboard either a specific vessel or a fleet of vessels under common ownership or control. With few exceptions, all non-seamen workers injured over navigable waters are covered instead by the Longshore and Harbor Workers' Compensation Act, 33 U.S.C. � 901�950, a separate form of workers' compensation.