14.4 Ocean Marine Coverages (hull, cargo, freight, P&I)

Ocean Marine Insurance

Ocean marine is the oldest form of insurance, covering vessels and cargo on the high seas, lakes, and inland waterways. It is almost entirely non-filed and negotiable, shaped by centuries of maritime custom (the London market, Lloyd's, the Institute Clauses). Ocean marine policies are typically written on a named-perils basis with an emphasis on 'perils of the sea.'

The four traditional ocean marine coverages are hull, cargo, freight, and protection & indemnity (P&I). The exam tests what each insures, and the unique loss/average concepts that distinguish marine from land coverage.

The four coverages

Trap: Hull's collision clause (the Running Down Clause / RDC) covers damage the insured vessel does to another vessel, but P&I picks up many liabilities the hull collision clause excludes (people, docks, pollution).

Perils and 'perils of the sea'

Ocean marine names 'perils of the sea' - fortuitous accidents peculiar to the sea: heavy weather, stranding, sinking, collision. It is distinct from 'perils on the sea' (fire, jettison, piracy, barratry) which are listed separately. The historic broadening clause is the 'Inchmaree' clause, adding coverage for losses from latent defects in machinery, boiler bursting, and crew negligence.

Trap: Ordinary wear and tear, gradual deterioration, and inherent vice (e.g., fruit spoiling on its own) are not perils of the sea and are excluded.

General average vs. particular average - the marine essence

Marine loss is split into average (partial-loss) concepts:

• Particular average - a partial loss borne entirely by the owner of the property damaged (e.g., one shipper's water-damaged cargo).
• General average - a voluntary, deliberate sacrifice or expense made for the common safety of the venture (e.g., jettisoning some cargo to save the ship). The loss is shared proportionally by all parties whose property was saved - ship, all cargo owners, and freight interest.

The three tests for a general-average act: the peril is real and imminent, the sacrifice is voluntary, and the act is successful in saving property.

Coinsurance and a worked general-average contribution

Ocean marine cargo often carries a high (e.g., 100%) coinsurance/valuation requirement. For a general average contribution, each party pays in proportion to the value saved.

Example - total values saved: Ship $4,000,000; Cargo $1,000,000; Freight $1,000,000 = $6,000,000 total. A general-average sacrifice/expense of $600,000 must be shared.

• Contribution rate = $600,000 / $6,000,000 = 10%.
• Ship pays 10% x $4M = $400,000.
• Cargo pays 10% x $1M = $100,000.
• Freight pays 10% x $1M = $100,000.

Each interest's marine policy then reimburses its insured's contribution.

Implied warranties and total losses

Ocean marine imposes strict implied warranties: the vessel is seaworthy, the voyage is legal, and there is no deviation from the planned route. Breach can void coverage.

Losses are also classified as:

• Actual total loss - property is destroyed or so damaged it ceases to be the thing insured.
• Constructive total loss - cost to recover/repair exceeds the insured value, so the insured abandons the property to the insurer and claims a total loss.

Trap: Constructive total loss requires the insured to tender abandonment; the insurer then may accept the salvage.

Ocean marine also uses the 'sue and labor' clause, which reimburses the insured for reasonable costs spent to prevent or minimize a covered loss - paid in addition to the policy limit and even if the rescue effort ultimately fails. Coverage is further shaped by the free of capture and seizure (FC&S) clause and war risk exclusions, which separate ordinary marine perils from war and political risks that require specialized war-risk cover.

Warranties, Coverage Triggers, and the Cargo Clauses

Ocean marine cargo is commonly written under the Institute Cargo Clauses in three tiers: (A) all-risk (broadest), (B) named perils plus, and (C) the narrowest named perils. Cargo policies can be written trip (single voyage) or open (continuous, declaring shipments as made). The strict implied warranties - seaworthiness, legality, and no deviation - can void coverage if breached.

Trap: General average spreads a voluntary sacrifice for the common good across all saved interests in proportion to value; particular average is a partial loss borne alone by the owner of the damaged property. Reversing these - or applying general-average contribution to an involuntary partial loss - is the classic ocean-marine miss.

Sue-and-Labor, Abandonment, and the War Exclusion

Three more ocean-marine mechanics appear on exams. The sue-and-labor clause reimburses the insured for reasonable costs spent to prevent or minimize a covered loss - paid in addition to the limit and even if the rescue fails. A constructive total loss requires the insured to tender abandonment of the property to the insurer before claiming a total loss. Ordinary marine perils exclude war and political risk (the FC&S - free of capture and seizure - clause), which is bought back separately as war risk coverage.

Trap: General average is a voluntary sacrifice shared by all saved interests; particular average is an involuntary partial loss borne alone by the owner. The sue-and-labor payment is extra to the limit, not subject to it.