14.3 Inland Marine and Nationwide Marine Definition

Origins: from ocean marine to land

Inland marine insurance evolved from ocean marine when insurers extended cargo protection past the dock to cover goods moving over land. Today, inland marine covers four broad categories often called the 'instrumentalities of transportation and communication':

1. Property in transit over land (cargo, shipments)
2. Mobile/portable property (contractors equipment, cameras, fine art)
3. Property held by a bailee (a dry cleaner holding customer clothes)
4. Instrumentalities - bridges, tunnels, pipelines, communication towers, transmission lines

The unifying idea is that inland marine covers property that moves or is movable and property in someone else's care - exposures the fixed-location property forms handle poorly.

The Nationwide Marine Definition (NWMD)

Because 'marine' coverage was so flexible, regulators needed boundaries between marine and standard property lines. The Nationwide Marine Definition, first adopted in 1933, broadly revised in 1953, and amended since, lists the classes of risk that may be written as marine (ocean or inland) insurance. Its purpose is twofold:

• Define eligibility - what property qualifies for inland marine
• Prevent overlap - keep marine insurers from writing fixed-location property that belongs in fire/property lines

If a risk does not fall within an NWMD class, it cannot be written as inland marine. The definition is the gatekeeper for the entire line and is frequently tested by name.

Filed (controlled) vs. non-filed (uncontrolled) classes

NWMD classes split into two rating categories:

Filed classes behave like other regulated lines - standardized and rate-filed. Non-filed classes are where inland marine earns its reputation for flexibility: the underwriter manuscripts coverage and sets the rate by judgment. Exam questions test which side a given form sits on - personal articles floater is filed; jewelers block and contractors equipment are non-filed.

Bailee, Transit, and Instrumentality-of-Transportation Classes

Inland marine grew from the principle that property in transit or held by a bailee needs all-risk coverage that a fixed-location property form cannot provide.

The major commercial inland marine classes the exam expects: bailee customers' policies (laundries, dry cleaners, repair shops covering customers' goods), motor truck cargo (a carrier's liability for goods it hauls), transportation/transit floaters and trip transit, contractors' equipment floaters (mobile tools and machinery), installation floaters (materials until installation is accepted), and builders' risk on inland marine forms.

A separate class is the instrumentalities of transportation and communication — bridges, tunnels, pipelines, radio/TV towers, and dams — which qualify because they facilitate movement or communication.

Personal inland marine includes the Personal Articles Floater and Personal Property Floater for scheduled valuables on an open-peril, agreed/stated-value basis with no deductible. The unifying test from the Nationwide Marine Definition is mobility or a transportation nexus; property that simply sits at a fixed commercial location belongs on a property form, not inland marine.

Filed vs. Non-Filed and the Coverage-Basis Recap

The Nationwide Marine Definition sorts inland marine into filed (controlled) classes — personal articles floaters, commercial floaters with standardized ISO forms whose rates/forms are filed with the state — and non-filed (uncontrolled) classes, where insurers enjoy broad freedom to design manuscript forms and set rates (contractors' equipment, motor truck cargo, many bailee forms). This filing freedom is why inland marine can be tailored to mobile and unusual property that standard forms reject.

Most inland marine is written open-peril (all-risk) on an agreed or stated-value basis with little or no coinsurance, and personal floaters carry no deductible — features that make scheduling high-value items on a Personal Articles Floater the standard fix for the homeowners special-limit problem.

Major inland marine forms

Personal lines floaters (filed):

• Personal Articles Floater (PAF) - scheduled valuables (jewelry, furs, fine art, cameras, silverware) on an all-risk, often agreed-value basis worldwide.
• Personal Property Floater / Personal Effects Floater - broad coverage on personal property, including while traveling.

Commercial inland marine (mostly non-filed):

• Jewelers Block / Furriers Block - dealer stock, customer goods, and property on consignment.
• Bailee customer forms - cover a bailee's liability for customers' property (e.g., laundry, processors).
• Motor Truck Cargo - a carrier's liability for goods it transports.
• Contractors Equipment Floater - mobile tools and equipment at job sites.
• Transportation/Transit forms - annual transit, trip transit, and shippers/carriers forms covering property in transit.

Valuation and coverage basis

Most inland marine is written on an all-risk (open-perils) basis - the broadest form, covering any cause of loss except those excluded. Valuation depends on the form:

• Agreed value - common on scheduled valuables (PAF, fine art) where appraisal sets a fixed amount paid at total loss; this avoids ACV disputes.
• Actual cash value (ACV) - replacement cost minus depreciation, common on equipment.
• Replacement cost - available on some commercial forms by endorsement.

Many inland marine floaters carry no coinsurance, especially scheduled/agreed-value forms. Where a blanket limit applies (e.g., a contractors equipment schedule with an unscheduled sublimit), a coinsurance-style requirement can appear, but the scheduled portions usually do not.

Worked ACV example: a contractor's generator cost $10,000, has a 10-year life, and is 4 years old at a total loss. Straight-line depreciation = (4/10) x $10,000 = $4,000. ACV recovery = $10,000 - $4,000 = $6,000, less the deductible.