Comparative Negligence in Maritime Injury Cases

After an injury at sea, employers love to argue that the accident was your fault. Under maritime law, even if some of it was, you usually still recover. Comparative negligence reduces a maritime claim, but it almost never destroys it.

This article is for informational purposes only and does not constitute legal advice. How fault is allocated is fact-specific and often the central fight in a case; to understand how it applies to you, consult a licensed maritime attorney.

Key Facts at a Glance

• Maritime law applies pure comparative negligence, so a seaman’s recovery is reduced by the seaman’s share of fault but is not barred (Source: Justia).
• The Supreme Court replaced the old equal-division rule with proportional fault, United States v. Reliable Transfer Co., 421 U.S. 397 (1975) (Source: Justia).
• The Jones Act adopts the Federal Employers’ Liability Act, which provides for comparative negligence, 45 U.S.C. § 53 (Source: Cornell LII).
• Assumption of risk is abolished as a defense, 45 U.S.C. § 54 (Source: Cornell LII).
• Assumption of risk is not a defense to a seaman’s injury claim, Socony-Vacuum Oil Co. v. Smith, 305 U.S. 424 (1939) (Source: Justia).
• Comparative fault also reduces recovery in an unseaworthiness claim, even though unseaworthiness is a form of strict liability.
• Comparative negligence does not reduce maintenance and cure, which is owed regardless of fault.

Blaming the injured worker is the oldest play in the insurer’s book, and on land it can be devastating, because some states bar recovery entirely if the worker was even partly at fault. Maritime law rejects that approach. The rules that protect seamen were built on the understanding that life at sea is dangerous and that a worker’s lapse should reduce, not erase, the compensation owed when the employer or an unseaworthy vessel also played a part. The result is a system that is far more forgiving of an injured worker’s own mistakes than most people expect.

This guide explains comparative negligence in maritime injury cases: what pure comparative fault means, how it actually changes the dollars, why your fault does not bar your claim, why assumption of risk is not a defense, how it interacts with unseaworthiness and with maintenance and cure, the narrow primary-duty rule, and how employers use fault arguments, so you can see through them.

What Is Comparative Negligence in Maritime Law?

Comparative negligence is the rule that splits responsibility for an injury by percentage of fault, and maritime law uses its most worker-friendly version, pure comparative fault. Under this rule, a jury or judge assigns each party a share of the blame, and the injured seaman’s damages are reduced by the seaman’s own percentage, with no cutoff that bars recovery (Source: Justia). A worker found 20 percent at fault loses 20 percent of the award; a worker found 70 percent at fault still recovers the remaining 30 percent. This differs sharply from the modified comparative or contributory rules in many state courts, where being 51 percent or even 1 percent at fault can end the case. In maritime law, fault is a dial that turns the recovery up or down, not a switch that shuts it off.

How Does Comparative Negligence Reduce a Settlement?

The math is straightforward: the total damages are calculated first, then reduced by the injured worker’s percentage of fault. If a seaman’s full damages are valued at a given amount and the seaman is found partly responsible, the recovery is the full value minus that percentage. The table below shows how the same underlying claim shrinks as the worker’s assigned fault rises, holding full damages constant for illustration.

These figures are illustrative only and do not reflect any particular case; the value of a claim and the allocation of fault depend entirely on the evidence.

Worked example: A deckhand slips and falls partly because he hurried and partly because the employer failed to fix a known oil leak on deck. The jury values his full damages at $400,000 and assigns him 30 percent of the fault. His recovery is reduced by 30 percent to $280,000. His own carelessness lowered the award but came nowhere near barring the claim.

Why Doesn’t My Own Fault Bar My Maritime Claim?

Your fault does not bar the claim because maritime law deliberately abandoned the harsh all-or-nothing rules generations ago. In United States v. Reliable Transfer Co., 421 U.S. 397 (1975), the Supreme Court discarded the old admiralty practice of dividing damages equally regardless of actual blame and adopted proportional fault, so liability now tracks each party’s real share of responsibility (Source: Justia). For seamen specifically, the Jones Act borrows the framework of the Federal Employers’ Liability Act, which provides that a worker’s contributory negligence diminishes damages in proportion to fault rather than defeating the claim, 45 U.S.C. § 53 (Source: Cornell LII). Together these rules mean an injured seaman can be substantially at fault and still recover a meaningful amount, as long as the employer’s negligence or the vessel’s unseaworthiness was also a cause.

Is Assumption of Risk a Defense in Maritime Cases?

No. Assumption of risk is not a defense to a seaman’s injury claim, and an employer cannot defeat a case by arguing the worker knew the job was dangerous and did it anyway. The Federal Employers’ Liability Act abolished the assumption-of-risk defense, 45 U.S.C. § 54, and the Supreme Court confirmed it does not apply to seamen in Socony-Vacuum Oil Co. v. Smith, 305 U.S. 424 (1939) (Source: Cornell LII). This matters because dangerous conditions are common at sea, and without this rule an employer could escape liability simply by showing the hazard was obvious. The defense remains unavailable even where the seaman chose to use equipment he knew was defective; his choice may factor into comparative fault, but it does not bar the claim. Note that assumption of risk can still arise in some passenger cases, which are governed by different rules than seamen’s claims.

Does Comparative Negligence Apply to Unseaworthiness Claims?

Yes. Comparative negligence reduces recovery in an unseaworthiness claim just as it does in a Jones Act negligence claim, even though unseaworthiness is a form of strict liability that does not require proving the owner was careless. A seaman who is partly responsible for the injury has the unseaworthiness award reduced by that percentage of fault. What does not change is the vessel owner’s underlying duty: the obligation to provide a seaworthy vessel is nearly absolute, so the owner cannot escape it by pointing to the worker’s conduct, only reduce the damages. Because most serious cases plead Jones Act negligence and unseaworthiness together, the same fault percentage typically applies across both theories, lowering the total recovery by the worker’s share.

Does My Fault Reduce Maintenance and Cure?

No, and this is a crucial distinction. Maintenance and cure, the daily living allowance and medical care a seaman is owed while recovering, is a no-fault obligation, so it is not reduced by comparative negligence the way a negligence or unseaworthiness award is. An injured seaman receives full maintenance and cure even if his own carelessness contributed heavily to the accident. The narrow exceptions are not about ordinary fault: maintenance and cure can be barred only by something like the seaman’s willful misconduct, intoxication as the sole cause, or the intentional concealment of a pre-existing condition. So while a worker’s fault can shrink the damages in the negligence side of the case, it leaves the maintenance and cure owed during recovery untouched, a key reason these claims are pursued together.

What Is the Primary Duty Rule?

The primary duty rule is a narrow and contested doctrine that can limit recovery for a seaman who is injured by failing to perform a duty he was specifically employed to carry out. It traces to older case law and is sometimes used to argue that a captain or supervisor whose very job was to fix the hazardous condition should not recover when that condition causes his injury. Many courts and commentators criticize the rule as a backdoor revival of assumption of risk, which the law abolished, and they confine it tightly: it generally does not apply where the employer’s own negligence also contributed to the injury, and in that situation the seaman’s breach is handled through ordinary comparative fault rather than a complete bar. Because the doctrine is applied inconsistently across courts, an employer’s reliance on it should be scrutinized closely.

How Do Employers Use Comparative Negligence as a Defense?

Comparative negligence is the defense employers lean on hardest, because even when they cannot deny the injury, they can try to shift the blame to the worker. The familiar arguments are that the worker did not follow a safety procedure, did not wear protective equipment, worked too fast, ignored a known hazard, or engaged in horseplay. There is also an important asymmetry in the standards: an employer’s Jones Act negligence is judged under a relaxed, featherweight causation standard, while the worker’s own contributory fault is measured by the ordinary standard, a distinction that can favor the injured seaman. Claimants push back by documenting the employer’s failures, such as inadequate staffing, missing safety equipment, poor training, or unrealistic schedules, that set the stage for the injury, which both raises the employer’s share of fault and lowers the worker’s. The goal is not to deny all fault but to keep the worker’s percentage honest.

Key Authorities on Maritime Comparative Negligence

Frequently Asked Questions

What is comparative negligence in maritime law?

It is the rule that allocates fault by percentage and reduces an injured worker’s recovery by the worker’s share of fault. Maritime law uses pure comparative negligence, so the claim is reduced but never barred, even if the worker was mostly at fault, as long as the employer or an unseaworthy vessel also contributed.

If the accident was partly my fault, can I still recover?

Yes. Under pure comparative negligence, your recovery is reduced by your percentage of fault but is not eliminated. A seaman found 60 percent at fault still recovers 40 percent of the damages. This is far more forgiving than the rules in many state courts, where significant fault can bar a claim entirely.

How much will my own fault reduce my settlement?

By your assigned percentage of fault. If your full damages are valued at a certain amount and you are found 25 percent responsible, your recovery is reduced by 25 percent. The exact percentage depends on the evidence, which is why employers fight hard to inflate the worker’s share and claimants work to document the employer’s failures.

Is assumption of risk a defense to a Jones Act claim?

No. The assumption-of-risk defense is abolished for seamen, so an employer cannot defeat a claim by arguing the worker knew the job was dangerous. Choosing to do dangerous work, or even to use equipment known to be defective, does not bar recovery, though it may be weighed in comparative fault.

Does comparative negligence apply to unseaworthiness claims?

Yes. Even though unseaworthiness is a form of strict liability, a seaman’s comparative fault reduces the unseaworthiness award by the worker’s percentage of fault. The vessel owner’s duty to provide a seaworthy vessel remains, so the worker’s conduct lowers the damages rather than excusing the owner.

Does my fault reduce my maintenance and cure?

No. Maintenance and cure is a no-fault benefit and is not reduced by comparative negligence. You receive it during recovery regardless of your share of fault. It can be barred only by narrow exceptions such as willful misconduct, intoxication as the sole cause, or concealment of a pre-existing condition.

What is the primary duty rule?

It is a narrow, contested doctrine that can limit recovery for a seaman injured by failing to perform a duty he was specifically hired to carry out. Many courts criticize it as a disguised assumption-of-risk defense and confine it tightly, applying ordinary comparative fault instead where the employer’s negligence also contributed. Have your case reviewed if an employer raises it.

References and Sources

1. United States v. Reliable Transfer Co., 421 U.S. 397 (1975), Justia
2. Socony-Vacuum Oil Co. v. Smith, 305 U.S. 424 (1939), Justia
3. Contributory negligence and comparative fault, 45 U.S.C. § 53, Cornell LII
4. Assumption of risk abolished, 45 U.S.C. § 54, Cornell LII
5. Jones Act, 46 U.S.C. § 30104, Cornell LII
6. Offshore Injury Help, unseaworthiness claims
7. Offshore Injury Help, maintenance and cure

Editorial Standards and Review

This article follows a zero-hallucination policy. Every legal rule, case holding, and statute is traced to a primary or authoritative source linked inline and listed above; Supreme Court holdings are cited to the official reporter and verified against Justia, and statutory text is verified against the U.S. Code. Dollar figures used to illustrate fault reductions are hypothetical and do not reflect any actual case. We are not a law firm and not attorneys, and nothing here is legal advice. How fault is allocated depends on the specific facts, so an injured worker should consult a licensed maritime attorney. Last reviewed June 2026. See our editorial standards.