Marine Cargo Insurance Guide: Types, Coverage, Claims and Best Practice

Marine cargo insurance is one of the most under-used risk-management tools in international trade. Many exporters buy insurance only when forced by an LC, treat it as a formality, and discover — only after a loss — that their policy excluded exactly the damage they suffered. This guide explains the coverage options, how to value cargo, how claims work and how to buy insurance properly.

What is marine cargo insurance?

Marine cargo insurance covers loss or damage to goods while in transit — by sea, air, road or rail — between the warehouse of origin and the warehouse of destination. The name "marine" is historical; modern policies cover all legs of an international journey, including inland transit.

Why exporters need marine insurance

• Ocean freight involves rough handling, rolling seas, humidity, condensation and port transfers.
• General Average declarations can leave exporters liable to contribute to losses on other containers.
• Air shipments can be damaged by handling, temperature shifts or theft.
• Insurance claims are far faster and more reliable than recovering from the carrier (whose liability is heavily capped under international conventions).
• Buyers and LCs often require it.

Institute Cargo Clauses — the building blocks

Globally, marine cargo insurance uses the Institute Cargo Clauses (ICC), published by the Institute of London Underwriters. Three main sets exist:

### Institute Cargo Clauses (A) — "All Risks"

• Broadest coverage.
• Covers all loss or damage except specific exclusions (e.g., inherent vice, insufficient packing, war, strikes — unless extended).
• Recommended for most general cargo, fragile items, electronics and high-value goods.

### Institute Cargo Clauses (B) — Named Perils

• Covers major events: fire, explosion, vessel sinking/stranding, collision, earthquake, lightning, washing overboard, total loss during loading/unloading.
• More limited than A; does not cover theft, pilferage or non-delivery unless extended.

### Institute Cargo Clauses (C) — Restricted Named Perils

• Most restrictive.
• Covers fire, explosion, sinking, stranding, collision, general average sacrifice, jettison.
• Suitable for bulk cargo, ores, scrap and cargo where minor damage is tolerable.

> As a rule of thumb: buy Clauses A for high-value or fragile cargo, B for general cargo, and C only for bulk or low-value cargo where partial damage is rarely a total loss.

Common extensions and add-ons

• **Institute Strikes Clauses** — covers strike-related damage.
• **Institute War Clauses** — covers war risks (often excluded from base).
• **Institute Cargo Clauses (Air)** — air-cargo-specific version.
• **SRCC (Strikes, Riots and Civil Commotion)** — political-risk extension.
• **Warehouse to Warehouse cover** — covers door-to-door, not just port-to-port.
• **Reefer breakdown extension** — for refrigerated cargo.

How to value cargo for insurance

The standard practice is to insure at:

``` Insured Value = CIF value × 110% ```

The extra 10% covers incidental costs and lost margin. Some policies allow higher percentages (up to 130%) with insurer approval.

> Always check that the insured value matches the LC requirement. LCs typically specify "110% of CIF value".

How to buy marine insurance in India

• Through a general insurance company (New India, ICICI Lombard, HDFC Ergo, Bajaj Allianz, etc.) or a marine insurance broker.
• Single-shipment (voyage) policy for occasional exports.
• Open policy / open cover for regular exporters — covers all shipments within the policy period automatically, with monthly declarations.

Documents needed at claim time

• Original insurance policy / certificate.
• Commercial invoice and packing list.
• Bill of lading / airway bill.
• Survey report (if damage is detected at destination).
• Short delivery certificate from the carrier or port.
• Copies of correspondence with the carrier.
• Letter of subrogation (if claiming against a third party).

How the claims process works

1. 1**Notify the insurer immediately** on discovering damage — typically within 7–14 days.
2. 2**Engage a surveyor** appointed by the insurer at the destination port.
3. 3**Obtain a survey report** quantifying damage.
4. 4**File a formal claim** with all supporting documents.
5. 5**Insurer settles the claim** after due diligence — typically 30–90 days for clean cases.
6. 6**Subrogation** — the insurer then pursues recovery from the carrier on your behalf.

Common exclusions

• Inherent vice (e.g., grain naturally spoiling without external cause).
• Insufficient or unsuitable packing.
• Delay (loss of market).
• Insolvency or financial default of the carrier.
• War and strikes (unless extended).
• Nuclear risks.

Common mistakes exporters make

• Buying Clauses C when they need A.
• Insuring at CIF value, not CIF × 110%.
• Not declaring the correct voyage (origin and destination warehouses).
• Failing to notify damage promptly — late notification can void the claim.
• Not taking a surveyor's report at destination when damage is visible.
• Not extending cover for inland transit beyond the port.

FAQ

**Q: Who buys insurance under CIF vs FOB?** A: Under CIF (and CIP), the seller buys insurance. Under FOB, FCA, CFR, the buyer arranges insurance. The Incoterm defines who buys, not whether to buy.

**Q: What is "General Average" and how does insurance help?** A: General Average is a maritime principle where all cargo owners share losses from a voluntary sacrifice (e.g., jettisoning cargo to save the ship). Insurers handle the contribution, saving exporters from direct exposure.

**Q: Is marine insurance mandatory?** A: Not legally for all shipments, but most LCs require it under CIF/CIP, and most prudent exporters buy it regardless of Incoterm.

**Q: How quickly must I notify damage?** A: Immediately on discovery, with written notice to the carrier and insurer. Delay beyond the policy window (typically 7–14 days) can void the claim.

Key Takeaways

• Marine insurance covers goods in transit by sea, air, road or rail.
• Institute Cargo Clauses A is broadest; B is mid; C is most restricted.
• Insure at CIF × 110% to cover incidental costs and lost margin.
• Notify damage promptly, engage the surveyor, and file with full documentation.
• Open covers are more efficient for regular exporters than single-voyage policies.

Blueroute Exim (Surat, Gujarat) coordinates marine insurance on shipments it manages, including coverage value, clauses and claims handling.