14.3 Inland Marine and Nationwide Marine Definition

Origins and the Nationwide Marine Definition

Inland marine grew out of ocean marine: as goods left the ship and moved overland by rail and truck, marine underwriters extended coverage 'inland.' Because inland marine straddled property and transportation, states adopted the Nationwide Marine Definition (first 1933, revised 1953 and 1976) to draw a clear line around what marine underwriters may write. The exam treats this definition as the boundary that separates inland marine from ordinary fire/property lines.

The Nationwide Marine Definition authorizes inland marine for six broad categories:

• Imports and Exports (goods in foreign trade)
• Domestic shipments (property in transit within the country)
• Instrumentalities of transportation and communication (bridges, tunnels, pipelines, radio/TV towers, dams, power transmission lines)
• Personal property floaters (PAF - jewelry, furs, fine arts, cameras)
• Commercial property floaters (contractors equipment, accounts receivable, valuable papers)
• Property where mobility/portability is essential to its function

Filed vs. Non-Filed and the ISO Forms

Inland marine splits into:

• Filed (controlled) classes - rates and forms are filed with the state; these are standardized ISO Commercial Inland Marine coverage forms attached via the CM 00 01 Conditions and a transportation/floater coverage form. Examples: accounts receivable, valuable papers, contractors equipment, signs, commercial articles floater.
• Non-filed (uncontrolled) classes - the insurer is free to design wording and rates (e.g., jewelers block, builders risk variants, motor truck cargo). This flexibility is a defining inland-marine trait the exam contrasts with rigid fire-line filing.

Common coverage characteristics:

• Most inland marine floaters are written on an open-perils (special) basis and frequently at replacement cost or agreed value.
• Many floaters are 'floaters' precisely because property moves - coverage follows the item anywhere within the policy territory.

Key Forms and a Coinsurance Worked Example

Widely tested inland marine forms:

Worked example - floater coinsurance/agreed value. A camera shop insures business cameras under a commercial articles floater for $80,000 with an 80% coinsurance clause; replacement value at loss is $120,000. Required insurance = 80% x $120,000 = $96,000. The insured carried only $80,000, so recovery is reduced: $80,000 / $96,000 = 0.8333. On a $30,000 covered loss the insurer pays 0.8333 x $30,000 = $25,000 (before any deductible). Carrying an agreed-value form would have suspended this penalty.

Transit, Bailee, and Coverage Triggers

Much of inland marine answers the question 'who covers property while it moves or while it is in someone else's care?' Two trigger patterns dominate exam questions:

• Transit coverage follows goods being shipped. A Transportation/Annual Transit floater or Motor Truck Cargo form covers property in the course of transit; the carrier's legal liability is narrower (it pays only when the carrier is legally liable, e.g., negligence), while a shipper's cargo policy can pay on a broad open-perils basis regardless of carrier fault.
• Bailee coverage protects customers' property in the insured's custody - a dry cleaner, jeweler, or repair shop. A Bailee's Customer Floater pays for damage to customers' goods even when the bailee is not legally liable, preserving goodwill, whereas a bare bailee legal-liability form pays only on the bailee's negligence.

Producers should also know the builders risk family, often written as inland marine for property under construction (materials, fixtures, and the structure during the build), and the installation floater covering equipment a contractor installs at a jobsite until the owner accepts it. These movable-property exposures are exactly what the Nationwide Marine Definition was written to capture, and they are tested against fixed-location fire policies that would not respond once property leaves the described premises.

Two additional filed forms appear often. The Accounts Receivable form pays when an insured cannot collect outstanding balances because records were destroyed by a covered peril, plus the cost to reconstruct records and extra collection expense; it solves a pure financial exposure rather than physical damage. The Valuable Papers and Records form pays the cost to research, replace, or restore lost documents such as deeds, manuscripts, and drawings, and may extend to electronic data by endorsement.

Both forms illustrate the inland-marine principle that the line covers high-value, mobile, or hard-to-value property that ordinary fire forms handle poorly. Each can be written on a blanket or scheduled basis, often with agreed-value options that avoid coinsurance disputes when the true value of unique records or receivables is hard to fix at the time of loss.

Origins and the Nationwide Marine Definition

Inland marine coverage grew out of ocean marine as insurers extended protection to goods on land in transit. The Nationwide Marine Definition (a regulatory definition adopted by states) lists the classes eligible for inland marine: imports/exports, domestic shipments, instrumentalities of transportation/communication (bridges, tunnels, pipelines, radio/TV towers), mobile equipment and property, and certain dealers' policies. If a risk fits the definition, it can be written on a flexible, often non-filed inland marine form rather than a standard property form.

Filed vs. Non-Filed Forms and a Coinsurance Example

Filed (controlled) classes use standardized forms and rates (e.g., Commercial Articles, Equipment Floaters, Accounts Receivable, Valuable Papers, Signs). Non-filed (uncontrolled) classes let insurers craft manuscript forms (Contractors' Equipment, Bailee, Jewelers/Furriers Block, Builders Risk, Installation). Many inland marine forms are open-peril and provide broad, often worldwide coverage.

Worked example: a Valuable Papers floater with an 80% coinsurance clause, value $250,000, limit carried $160,000 (required $200,000); a $50,000 loss pays 160,000/200,000 x 50,000 = $40,000 before deductible. Bailee forms (e.g., a dry cleaner) cover customers' property in the insured's care, and the coverage trigger for transit forms is physical loss while the goods are in transit on covered conveyances.