Does Marine Insurance Cover Cargo?

What Marine Cargo Insurance Actually Covers

A marine cargo policy indemnifies you for physical loss or damage to goods in transit. The scope of that indemnity is defined by the Institute Cargo Clauses (ICC), which are the standard London-market clause sets incorporated into virtually every cargo policy placed in the UK and EEA. The three tiers — ICC (A), ICC (B), and ICC (C) — are not interchangeable, and choosing the wrong one can leave a significant portion of your loss unrecovered.

ICC (A) is the broadest form. It covers all risks of physical loss or damage except those specifically excluded. If something goes wrong with your cargo and you cannot identify a named peril, ICC (A) still responds — provided no exclusion applies. This is the appropriate starting point for most general merchandise, containerised goods, and high-value shipments.

ICC (B) and ICC (C) are named-perils clauses. ICC (B) covers a defined list including fire, explosion, stranding, sinking, collision, earthquake, lightning, washing overboard, and entry of sea, lake, or river water into the vessel or container. ICC (C) is narrower still — it responds to major casualties such as fire, explosion, stranding, sinking, and collision, but not to individual package loss or washing overboard. Bulk commodities, scrap metal, and lower-value industrial goods are commonly insured on ICC (C) because the premium reflects the restricted scope.

All three clause sets cover your proportionate contribution to general average and salvage charges, which matters more than many cargo owners realise. If the carrying vessel declares general average — invoking the York-Antwerp Rules to share a sacrifice or expenditure across all cargo interests — you will be required to provide a general average bond and, in most cases, a cash deposit or guarantee before your goods are released. Without a cargo policy in place, that deposit comes directly from your working capital.

What Is Not Covered — and Why It Matters

The exclusions in the Institute Cargo Clauses are not boilerplate. They define the boundary of your indemnity, and several of them catch cargo owners by surprise at the claims stage.

Inherent vice is excluded under all three clause sets. If your goods deteriorate because of their own nature — fruit ripening, metal corroding in its own moisture, hygroscopic cargo absorbing ambient humidity — that loss is not covered regardless of the clause you buy. The same applies to ordinary leakage, ordinary loss in weight or volume, and wear and tear. These are not insurable risks; they are the cost of the goods themselves.

Delay is excluded even when the delay is caused by an insured peril. If your cargo arrives late because the vessel was diverted after a collision, and you suffer a market loss or contractual penalty as a result, your cargo policy will not respond to that consequential loss. Freight liability cover or a specific contingency policy may be relevant here, but it is a separate placement.

War and strikes are excluded from the standard ICC clause sets but can be reinstated by endorsement — typically the Institute War Clauses (Cargo) and Institute Strikes Clauses (Cargo). For shipments transiting high-risk areas, including routes through the Red Sea, the Gulf of Aden, or the Strait of Hormuz, war cover is not optional. Underwriters will want to know your routing before binding, and additional premium will apply for listed areas under the Joint War Committee (JWC) Listed Areas guidance.

• Inherent vice and natural deterioration
• Ordinary leakage, weight loss, or wear and tear
• Delay, even when caused by an insured peril
• War, strikes, riots, and civil commotions (unless endorsed back in)
• Wilful misconduct of the assured
• Inadequate packing or preparation of the cargo
• Insolvency or financial default of the carrier

Carrier Liability Is Not Your Cargo Cover

One of the most common misunderstandings among freight forwarders and cargo owners is the assumption that the carrier's liability covers their loss. It does not — at least not in full. Under the Hague-Visby Rules, which govern most bills of lading for shipments from UK ports, the carrier's liability is limited per package or per kilogramme of gross weight, whichever is higher. For high-value or dense cargo, that limit is frequently a fraction of the actual value of the goods.

The Hamburg Rules and the Rotterdam Rules offer different liability frameworks, but the practical reality is that most commercial bills of lading still incorporate Hague-Visby. Even where a carrier is found liable, you face the burden of proving fault, navigating their defences — including the nautical fault defence under Hague-Visby — and waiting for litigation or arbitration to conclude. A cargo policy pays your claim first and subrogates against the carrier afterwards. That is a material difference in cash flow and commercial certainty.

If you are a freight forwarder operating under BIFA standard trading conditions or a similar freight liability framework, your own liability to your customers is also capped. A freight liability policy covers your exposure as a bailee or carrier, but it does not replace a cargo owner's own policy. Both covers serve different interests and should be placed separately.

Open Covers, Voyage Policies, and When to Use Each

If you ship regularly, an open cover is almost always more efficient than placing individual voyage policies. An open cover is a master agreement with underwriters that automatically attaches to each qualifying shipment you declare. You agree the clause set, the commodity, the trade routes, the sum insured basis, and the premium rate in advance. Each shipment is then declared against the open cover — either individually or in monthly bordereaux — rather than requiring a fresh placement each time.

Open covers suit shipping companies, freight forwarders, and importers or exporters with consistent cargo flows. The discipline they impose — declaring every shipment, maintaining accurate commodity descriptions, notifying underwriters of route changes — is also the discipline that keeps your cover valid. An undeclared shipment that suffers a loss is an uninsured loss.

Voyage policies are appropriate for one-off or irregular shipments, project cargo, or goods that fall outside the scope of your open cover. They are placed on a shipment-by-shipment basis and are typically more expensive per unit of cover than an open cover rate. For high-value single consignments — machinery, fine art, exhibition goods — a voyage policy allows underwriters to assess the specific risk and apply appropriate conditions.

Whichever structure you use, the sum insured should reflect the CIF (cost, insurance, freight) value of the goods plus an agreed percentage to cover anticipated profit and incidental expenses. Underinsurance at the time of loss will reduce your recovery proportionately.

What to Bring to Your Broker Before Placing Cover

Underwriters assess cargo risk on the basis of commodity, packaging, stowage, trade route, and your claims history. The more precisely you can describe each of these, the more accurately your broker can negotiate terms on your behalf — and the less likely you are to face a coverage dispute at the claims stage.

For an open cover, you should be prepared to provide a description of the commodities you ship, the markets you trade into and out of, your annual estimated shipment value, your preferred clause set and any specific endorsements you require, and at least three years of claims history. If you have had no claims, say so — it is a positive underwriting factor.

For a voyage policy on a specific consignment, underwriters will want the commodity description, packing specification, vessel name and flag, voyage routing, bill of lading terms, and the sum insured basis. For project cargo or out-of-gauge shipments, a survey report or packing certificate may be required before cover is bound.

• Commodity description and HS code where relevant
• Packaging and stowage method
• Trade routes and any high-risk transit areas
• Annual shipment value or per-voyage sum insured
• Bill of lading terms and carrier identity
• Three years of claims history
• Any existing open cover or policy wording you want to benchmark against

Sue and Labour, Duty of Assured, and What Happens at the Claims Stage

Your cargo policy imposes obligations on you as well as on underwriters. The sue-and-labour clause requires you to take reasonable steps to avert or minimise a loss, even after an insured event has occurred. Reasonable costs incurred in doing so are recoverable in addition to the main claim. Failing to act — leaving damaged cargo exposed to further deterioration, for example, or not notifying the carrier promptly — can reduce or extinguish your recovery.

When you become aware of a loss or potential loss, you should notify your broker immediately, preserve all evidence of the damage, obtain a survey report from an independent cargo surveyor, and issue a formal reservation of rights against the carrier. Your broker will guide you through the claims process, but the initial steps are yours to take — and they are time-sensitive. Most bills of lading impose short notice periods for damage claims, and missing them can prejudice your rights against the carrier even if your cargo policy responds.

Underwriters will want to see the original bill of lading, commercial invoice, packing list, survey report, and correspondence with the carrier. For general average claims, you will also need to engage with the average adjuster appointed by the shipowner. Your cargo policy should cover your general average contribution, but the adjustment process can take months or years to conclude, and your goods may be held pending provision of security.

Frequently asked questions

Does my carrier's liability cover my cargo loss in full?

Almost certainly not. Under Hague-Visby Rules, which govern most UK bills of lading, the carrier's liability is capped per package or per kilogramme. For most commercial cargo, that limit falls well short of the actual value of the goods. A standalone cargo policy covers the full insured value and pays your claim without requiring you to prove the carrier's fault first.

Do I need war cover for shipments through the Red Sea or Gulf of Aden?

Yes. War and strikes are excluded from the standard Institute Cargo Clauses (A), (B), and (C). For shipments transiting areas listed by the Joint War Committee — which includes the Red Sea, Gulf of Aden, and Strait of Hormuz — you need the Institute War Clauses (Cargo) endorsed onto your policy. Your broker should be confirming your routing before binding and ensuring war cover is in place for any listed-area transit.

What is the difference between ICC (A), ICC (B), and ICC (C)?

ICC (A) is all-risks cover — it responds to any physical loss or damage not specifically excluded. ICC (B) and ICC (C) are named-perils clauses that only respond to the specific events listed in the wording. ICC (C) is the most restrictive. For most general merchandise and containerised goods, ICC (A) is the appropriate starting point. ICC (B) or (C) may be appropriate for bulk commodities or lower-value industrial goods where the premium saving justifies the narrower scope.

What happens if I forget to declare a shipment under my open cover?

An undeclared shipment is an uninsured shipment. Open covers require you to declare every qualifying consignment. If a loss occurs on a shipment you failed to declare, underwriters are not obliged to pay. Most open covers include a held-covered provision for inadvertent non-declaration, but it requires prompt notification and may attract additional premium. The safest approach is to build declaration into your shipping process so nothing falls through.

Does my cargo policy cover my general average contribution?

Yes, provided you have a cargo policy in place at the time the general average is declared. General average — governed by the York-Antwerp Rules — requires all cargo interests to contribute to a shared sacrifice or expenditure. Without a policy, you must fund that contribution from your own resources and your goods may be held by the shipowner pending security. Your cargo policy covers your contribution and can provide the bond or guarantee the average adjuster requires.

How long does it take to bind a cargo policy?

A voyage policy on a straightforward consignment can typically be bound within one working day provided you have the commodity details, sum insured, vessel, and routing ready. An open cover placement takes longer — usually one to two weeks — because underwriters need to review your commodity profile, trade routes, and claims history before agreeing terms. If you have an urgent shipment, tell your broker the sailing date at the outset so they can prioritise accordingly.