What it means
When two vessels collide, both may bear fault although the cargo owner did nothing wrong. Cargo damage, ship damage, and reimbursement are separate questions.
A both-to-blame provision usually appears in a bill of lading rather than being a formula written into every insurance policy. It attempts to address an unusual recovery chain: cargo may recover from the other vessel, and that vessel may seek contribution from the carrier that transported the cargo.
A 1952 US Supreme Court case involved cargo damaged when two ships collided through negligent navigation. Under those facts, cargo owners could recover from the noncarrying ship.
The Court rejected that clause under the applicable US law, reasoning that a common carrier could not contract away the cost of its own negligence in that way. This is a specific legal holding, not a universal rule for every present-day voyage, jurisdiction, treaty, bill of lading, or insurance policy.
A cargo insurance contract may address liabilities or expenses arising from a collision provision, but coverage must be read rather than assumed. Check whose interest is insured, exclusions, notice, and applicable law.
A printed clause is not an immediate invoice. Fault allocation is also not the same as cargo's final recovery.
If a vessel is found 40% at fault, that number alone does not tell the cargo owner what to collect or pay, because the claim path and defences matter. Keep shipping documents, cargo value, survey evidence, correspondence, and the identities of both vessels.
A marine specialist can trace the claim paths instead of applying a wrong percentage shortcut. For a finance manager, separate a claim reserve from a confirmed reimbursement obligation, and have claims adjusters and maritime counsel confirm the amount and legal basis before it is treated as certain.
A broad overview may say shippers and vessel owners share losses, but cargo interests do not simply divide each bill by cargo value.
In practice
Real-world examples.
Example
Two ships share fault for a collision, and only one carried the damaged cargo. The cargo owner seeks recovery against the other vessel. The carrying vessel later receives a contribution demand; its bill of lading contains a clause seeking indemnity from cargo interests. Each step needs a distinct legal basis.
Example
A cargo policy mentions both-to-blame collision exposure, but the sales team assumes every indemnity demand is covered. The insurer reviews the exact wording, deductibles, notice, and law before accepting or declining the particular claim. A label on the certificate is not a coverage decision.
Example
A carrier inserts a broad clause in its standard form. A U.S.-law dispute alleges the clause makes innocent cargo owners repay costs of the carrier's own negligent navigation. The parties examine United States v. Atlantic Mutual and the current governing law, rather than treating the form as proof the term is enforceable.
Formula
Calculation
There is no universal both-to-blame clause formula. Illustration only: cargo damage is $200,000, the noncarrying vessel pays that amount, and later seeks $80,000 in contribution from the carrying vessel under assumed facts. A clause might seek to pass that $80,000 to cargo interests, but the $200,000 payment and $80,000 demand do not establish a valid cargo debt.
The $80,000 demand happens to equal 40% of the $200,000 cargo damage, but that is a coincidence of the illustration and not a rule. Whether cargo interests owe anything depends on the clause's validity under the governing law, the claim path, and any insurance cover, so a finance team should record only what counsel and adjusters confirm.Case study
Seen in the real world.
Fictional example: Selene Trading sent machinery by sea on the vessel Orion. After Orion and the vessel Cobalt collided, surveyors assessed $200,000 of cargo damage. Selene's insurance manager saw a both-to-blame provision in the bill of lading and told finance that it would have to reimburse half the loss. Counsel traced each claim instead: Selene's claim against Cobalt, Cobalt's potential claim against Orion, the clause's proposed indemnity, and the law selected in the shipping documents.
Finance recorded the actual insured loss and disclosed the unresolved reimbursement demand separately under its accounting policy. Selene preserved its evidence and did not pay a clause amount merely because both captains were blamed. Selene's claims file ended up listing four separate questions: who was at fault, what the cargo owner could recover, whether any contribution claim existed, and whether the clause was valid. Each had a different owner and evidence, which kept the finance team from booking a half-share reimbursement that nobody had yet shown to be owed.
Watch out
Common mistakes.
- Treating the both-to-blame provision as a universal rule that splits every cargo loss equally between vessel owners and cargo owners.
- Assuming a printed bill-of-lading clause is enforceable without checking the governing law and facts.
- Recognising a reimbursement debt from a collision percentage before tracing actual claims and insurance coverage.
Questions
People also ask.
Where does the clause normally appear?
It can appear in the bill of lading for ocean carriage; a cargo policy may separately address related exposure.
Does shared fault automatically mean cargo pays?
No. Fault, cargo recovery, inter-vessel contribution, a valid indemnity term, and coverage are separate steps.
What did the 1952 U.S. Supreme Court decide?
In the case before it, the Court rejected a bill-of-lading clause that attempted to shift the carrying vessel's negligence cost back to cargo owners.
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