14.4 Ocean Marine Coverages (hull, cargo, freight, P&I)
Key Takeaways
- Ocean marine insurance has four traditional coverage parts: hull (the vessel), cargo (the goods), freight (the income/charges earned for carriage), and protection & indemnity (P&I, the vessel owner's liability).
- Ocean marine still relies heavily on the doctrines of warranties, the implied warranty of seaworthiness, and the perils-of-the-sea clause, which date to centuries of admiralty law.
- General average apportions a deliberate sacrifice made to save the whole venture across all interests (hull, cargo, freight) in proportion to value saved, while particular average is a partial loss borne by the affected interest alone.
- Cargo coverage is typically open-peril (“all-risk”) under modern Institute Cargo Clauses (A) or named-peril under (B)/(C), and is frequently written on a valued (agreed-value) basis using CIF plus a markup.
- P&I responds to bodily injury to crew/third parties, damage to docks/piers, removal of wreck, and pollution — liabilities not covered by the hull running-down (collision) clause alone.
The Four Ocean Marine Coverages
Ocean marine is the oldest form of insurance, rooted in centuries of maritime commerce and admiralty law. It insures property and liability exposures on the water. Four traditional coverage parts make up an ocean marine program:
- Hull — physical damage to the vessel itself (and usually its machinery and equipment).
- Cargo — the goods being carried, owned by shippers or consignees.
- Freight — the income or charges the shipowner earns for carrying cargo; if the voyage fails, the freight may be lost.
- Protection & Indemnity (P&I) — the vessel owner's liability to crew, passengers, other vessels, and property.
A single voyage can involve all four interests — the shipowner protects hull, freight, and P&I, while the shipper insures the cargo.
Admiralty Doctrines the Exam Loves
Ocean marine carries unique conditions that ordinary property forms lack:
- Implied warranty of seaworthiness: the insured implicitly warrants the vessel is fit for the voyage. Breach can void coverage — there need not be an express clause.
- Perils of the sea: coverage responds to fortuitous accidents of the sea (heavy weather, stranding, sinking, collision), not to ordinary wear or the inevitable action of wind and waves.
- Warranties (express and implied): marine warranties are conditions; strict compliance is required, a stricter standard than ordinary policy representations.
- Sue and labor clause: the insured must take reasonable steps to minimize a loss, and the insurer reimburses those costs.
- Running-down clause (RDC) / collision clause: part of hull coverage, it pays the insured's liability for striking another vessel — but P&I picks up many liabilities the RDC excludes.
General Average vs. Particular Average
The average doctrines are a signature ocean marine exam topic:
| General Average | Particular Average | |
|---|---|---|
| Nature | Voluntary sacrifice to save the whole venture | Accidental partial loss to one interest |
| Who pays | All interests share in proportion to value saved | Borne by the owner of the damaged property alone |
| Classic example | Jettisoning cargo to refloat a grounded ship | Sea water damages one shipper's goods |
Under general average, if a captain deliberately jettisons part of the cargo to save a grounded ship, the loss is apportioned across hull, cargo, and freight in proportion to the value each interest had at stake. Particular average is a fortuitous partial loss that stays with the affected owner.
Worked Example — General Average Apportionment
To refloat a stranded vessel, $120,000 of one shipper's cargo is jettisoned. The saved values are: hull $1,800,000, all cargo $1,000,000, freight $200,000 — total saved $3,000,000.
- Each interest contributes in proportion to value saved: contribution rate = $120,000 / $3,000,000 = 4%.
- Hull pays 4% × $1,800,000 = $72,000; cargo interests pay 4% × $1,000,000 = $40,000; freight pays 4% × $200,000 = $8,000.
- The three contributions total $120,000, fully reimbursing the shipper whose cargo was sacrificed.
Cargo Settlement and P&I Scope
How Cargo Is Insured
Modern cargo coverage uses the Institute Cargo Clauses:
- Clauses (A) — open-peril (“all-risk”), the broadest.
- Clauses (B) and (C) — named-peril, with (C) the narrowest (major casualties only).
Cargo is usually written on a valued (agreed-value) basis. The insured value is commonly CIF (cost + insurance + freight) plus a markup (often 10%) to cover anticipated profit and incidental expense, so the shipper is made whole including expected gain.
Worked example: goods cost $50,000, insurance/freight add $6,000 (CIF = $56,000), and the policy adds a 10% markup. Insured value = $56,000 × 1.10 = $61,600, the amount payable at total loss.
What P&I Covers
Protection & Indemnity fills the liability gaps the hull collision clause leaves open:
- Bodily injury and illness of crew and passengers
- Injury to third parties and damage to docks, piers, and fixed objects
- Removal of wreck and certain pollution liabilities
- The portion of collision liability the hull RDC excludes
P&I is the marine equivalent of the vessel owner's broad liability cover and is essential to a complete ocean marine program.
A ship runs aground. To refloat it, the master deliberately jettisons part of one shipper's cargo. Which doctrine requires that this loss be shared proportionally among the hull, cargo, and freight interests?
Which ocean marine coverage part responds to the vessel owner's liability for injury to crew members, damage to a pier, and wreck removal?
Implied Warranties and Coverage Conditions in Ocean Marine
Ocean marine policies carry three implied warranties the insured must satisfy even if not written — a classic exam item:
| Implied warranty | Meaning |
|---|---|
| Seaworthiness | The vessel is fit for the voyage and properly crewed/equipped |
| No deviation | The vessel will not stray from the agreed/customary route without necessity |
| Legality | The venture is lawful |
Breaching an implied warranty can void coverage. Ocean marine is one of the few lines that frequently uses valued (agreed value) settlement and where the utmost good faith doctrine originated (uberrimae fidei). The four coverages — hull, cargo, freight, and protection & indemnity (P&I) — combine the property and liability exposures of a marine venture.
Trap: the warranty of seaworthiness is implied even when not stated; a vessel that sails unseaworthy may forfeit coverage. Deviation from the planned route without necessity similarly suspends or voids coverage.
Which of the following is an implied warranty in an ocean marine policy that the insured must satisfy even if it is not written into the contract?
The Perils Clause, Free of Particular Average, and War Risk
Ocean marine policies insure against the perils of the sea (heavy weather, sinking, stranding, collision) and named perils such as fire, jettison, barratry (wrongful acts by master/crew), and piracy. Coverage breadth is set by clauses candidates should recognize:
| Clause | Effect |
|---|---|
| Free of Particular Average (FPA) | No coverage for partial cargo losses below a threshold; total losses covered |
| With Average (WA) | Covers partial losses once they exceed a stated percentage |
| All risks | Broadest cargo terms, subject to exclusions |
| War risk | Excluded from the standard policy; bought back separately (a fundamental risk) |
General average (a voluntary, reasonable sacrifice/expense for the common safety — jettisoning cargo to save the venture) is shared proportionally by all interests (ship, cargo, freight). Particular average is a partial loss borne by the owner of the lost property alone.
Exam tip: general average = shared by all parties; particular average = borne by one owner. War risk is excluded from the base ocean marine policy and must be added — it is a classic fundamental-risk carve-out.