General Average: Why an Undamaged Container Can Be Held for Months
Intact cargo, and still unavailable
The notice usually does not come from your forwarder. It comes from the carrier, one line long: general average has been declared. Three days earlier a fire started forty metres from your container. Yours is untouched: it came off the ship in perfect condition, your entry is filed, your customer is waiting.
You are not getting it. Not before signing an average bond, and certainly not before posting security worth, in recent casualties, somewhere between 10% and 25% of the value of your cargo. On a $150,000 container that is a $30,000 wire, sent within days, to recover goods you already own and that suffered no damage whatsoever.
This is not a mistake or a shakedown. It is the oldest surviving rule in maritime law, and also the only logistics cost line capable of turning a routine shipment into a six-figure cash-flow event.
What general average actually is
The principle goes back to the Rhodian law of jettison, absorbed into Roman law: the owner whose goods are thrown overboard to lighten a sinking ship should not bear the whole loss, because the sacrifice saved everyone.
That drafting is the York-Antwerp Rules, maintained by the Comité Maritime International. The current version was adopted in New York in May 2016, but the bill of lading decides which applies — many contracts still incorporate the 1994 Rules, so read the general average clause on your transport document rather than assuming.
Rule A sets three cumulative tests. The sacrifice or expenditure must be extraordinary: ordinary running costs of the ship never qualify. It must be intentional and reasonable: accidental damage is particular average, borne by its own owner alone. And it must be for the common safety against a real peril, not a commercial inconvenience.
Three textbook sacrifices: containers jettisoned to correct a list, water pumped into a hold to fight a fire that destroys sound cargo, and deviation to a port of refuge. By contrast, a container crushed by heavy rolling with no decision from the bridge is particular average — your loss, your policy.
How the bill is split
Once the owner declares general average, an independent average adjuster is appointed to build two funds. One adds up everything sacrificed or spent for the common safety; the other, the value of everything saved — hull, cargo, bunkers, freight at risk. The ratio between them produces a contribution rate, applied to each interest in proportion to its value.
The figure used for your consignment is not your purchase price but the contributory value: value at the place and time of discharge, established from the commercial invoice. Goods whose market price rose during the voyage contribute more.
| Item | Allowed in GA? | Note |
|---|---|---|
| Cargo jettisoned or deliberately flooded | Yes | The archetypal sacrifice, Rules I and III |
| Port of refuge expenses | Yes | Entry, handling, forwarding, Rules X and XI |
| Salvage remuneration | Yes (2016 Rules) | The 2004 Rules excluded it — a main reason they were little used |
| Engine damage from wear | No | Ordinary operating cost, not extraordinary |
| Container crushed by rolling | No | Particular average, borne by its owner |
| 2% commission on disbursements | No (2016 Rules) | Abolished relative to the 1994 Rules |
The 2016 Rules also introduced a time bar: a contribution claim is typically barred one year after publication of the adjustment, and six years after the end of the common maritime adventure.
What actually releases the container
Two things get confused constantly: the final adjustment, which takes years, and the release of the goods, which is decided in days. The carrier has a lien over the cargo and holds it until security is provided. That security, and nothing else, determines when your customer gets delivered.
Two documents are requested. The average bond, signed by the cargo owner and undertaking to pay the contribution once the adjustment is published, is always required. Alongside it sits a financial security, and that is where outcomes diverge sharply.
| Security | Issued by | Cash out today | Typical situation |
|---|---|---|---|
| GA guarantee | Your cargo underwriter | None | Insured cargo — the good outcome |
| Bank guarantee | Your bank | Fee plus a blocked credit line | Uninsured but bankable |
| Cash deposit | You | 10–25% of value, order of magnitude | Uninsured, no alternative left |
The percentage is not a tariff. It is the adjuster's prudent opening estimate, revised down as the file clarifies. In the large container-ship fires of recent years, trade press reported combined general average and salvage security approaching half of cargo value.
Meanwhile the clock runs. A box sitting on the terminal accrues demurrage and detention for your account, because general average is not a contractual suspension event. If you buy LCL, add a layer: the consolidator holds the master bill, receives the demand and passes it down to each co-loader, usually with extra delay.
Three worked examples
Case 1 — Insured US importer, fire on board
Machinery, 40' HC Ningbo → Long Beach, CIF value = $180,000
Cargo premium at 0.22% = $396
Security demanded = 25% → $45,000
Instrument used: underwriter's guarantee → cash out = $0
Final contribution three years later, 2.1% = $3,780, paid by the insurer
The container is released in four working days, the time it takes the underwriter to issue the guarantee. Total cost of the casualty to the importer: the premium already paid.
Case 2 — Same shipment, uninsured
Cash deposit required = $45,000, wired before release
Time to raise the funds = 12 days → roughly 5 chargeable days past free time
Demurrage plus detention, order of magnitude = $600 to $1,100
Final contribution = $3,780 → refund = $41,220, after three years
Carrying cost at 6% a year ≈ $7,400
Here is the counter-intuitive part. The contribution itself, $3,780, is not the damage. The damage is $41,220 frozen for three years, whose carrying cost alone is roughly double the contribution — working capital removed at exactly the moment stock has to be repurchased. The $396 saved on premium ends up costing close to twenty times its own value.
Case 3 — Indian exporter, textiles, groundings and small lots
Garments, 18,500 lb, Nhava Sheva → Felixstowe, CIF value = $34,000
Vessel grounded, GA declared, security = 20% → $6,800
Documentation, certification and broker handling, estimate = $200 to $400
Contribution finally assessed at 1.4% = $476
On a small consignment the administrative cost becomes disproportionate to what is at stake. The 2016 Rules let the adjuster exclude low-value interests where collection would cost more than the contribution, but that is a discretion, not a right a shipper can invoke. Note also that the legal definition is essentially identical across common-law jurisdictions — section 66 of the UK Marine Insurance Act 1906 and section 66 of the Indian Marine Insurance Act 1963 use the same language.
The defence is one line on an invoice
All three market wordings — Institute Cargo Clauses A, B and C — cover general average contributions and salvage charges, including the narrowest. Even minimum clause C cover, bought only because a CIF sale required it, entitles you to the guarantee that releases the box.
The economics are lopsided. Marine cargo premium typically runs between 0.1% and 0.5% of CIF value depending on commodity, mode and route. Against a deposit measured in tens of thousands of dollars and refunded in years, no other line in landed cost offers that ratio.
Two checks, though. First the Incoterm: under FOB or FCA, risk passes to the buyer at handover, yet the buyer frequently has no policy running when the ship sails — the most dangerous configuration and also the most common in US import practice. Second the insured value: under-insurance triggers a proportionate reduction, and the guarantee issued may fall short of the contributory value the adjuster uses.
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General average is the one ocean cost that depends neither on your product, nor your supplier, nor your forwarder: it depends on what happens to a ship you do not control, and hits hardest those whose cargo is perfectly fine. No freight quotation mentions it, and it surfaces in an importer's accounts perhaps once in a career.
The conclusion is short: insure every shipment, even when the Incoterm does not oblige you to, and treat the premium as the price of guaranteed liquidity. For clause A, B and C wordings, see our guide to marine cargo insurance, and our note on checking a bill of lading, where the general average clause sits.
Frequently asked questions
My cargo was not damaged at all. Why do I owe anything?+
Because general average does not compensate your loss — it shares a sacrifice made to save the whole venture. When the master deliberately floods a hold to fight a fire or beaches the ship to stop it sinking, that loss was not random: it was chosen in everyone's interest, including yours, since your container arrived. The rule therefore makes every saved interest — ship, cargo, freight — contribute in proportion to its value. Your cargo being intact is not grounds for exclusion; it is evidence the sacrifice worked for you.
How long does a general average adjustment take?+
Think in years, not months. The average adjuster must collect a contributory value for every consignment on board — sometimes several thousand bills of lading — decide which claims are admissible, and publish a binding adjustment. On a modern container ship, two to five years is a common range, and cases with contested salvage run longer. Release of your container does not wait for that: it happens as soon as security is posted, typically within days or a few weeks.
Can I refuse to pay if the casualty was the shipowner's fault?+
Rarely, and this is the most misunderstood point in the whole subject. Almost every bill of lading carries a New Jason clause, which obliges cargo to contribute in general average even where the peril arose from negligent navigation or another fault for which the carrier is statutorily exempt — the clause exists precisely because US law under COGSA would otherwise bar recovery. You keep a separate claim against the carrier if you can prove, for example, unseaworthiness at the start of the voyage, but that claim is argued afterwards. It suspends neither the deposit nor the lien.
What happens if I simply refuse to sign the average bond?+
The carrier exercises its lien and the cargo stays on the terminal, where demurrage and storage keep accruing to your account. After a period, the shipowner can apply to court to sell the goods and satisfy the claim out of the proceeds. In practice refusing costs more than contributing, especially for goods with a short commercial shelf life. The productive move is not refusal but negotiation of the security percentage through your broker or underwriter, since the opening figure is a provisional estimate and is frequently reduced.
Does ordinary cargo insurance really cover this?+
Yes, and it is the least advertised part of the cover. All three market wordings — Institute Cargo Clauses A, B and C — expressly cover general average and salvage charges, including the narrowest of them, clause C. In practice your underwriter issues a general average guarantee that replaces the cash deposit: nothing leaves your bank account, the container is released, and the final contribution is settled by the insurer years later. Check two things: that the policy was in force at the moment of the casualty, and that the insured value matches the commercial value, since under-insurance produces a proportionate reduction in the settlement.
Thomas Delaunay
Thomas focuses on landed-cost modeling and forwarder benchmarking. Previously a procurement lead at a mid-cap industrial importer, he builds the cost intelligence that powers TRADE-COST calculations.
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