Ocean and inland marine insurance
Also known as: inland marine coverage, marine insurance
Inland marine insurance covers property that moves over land, property in transit, and movable or specialized property that a standard property policy does not adequately protect. It developed out of ocean marine insurance, which covers vessels and cargo on the water.
Marine insurance splits into two branches. Ocean marine insurance covers waterborne exposures and is traditionally written with four coverages: hull (the vessel itself), cargo (the goods being shipped), freight (the shipping revenue at risk), and protection and indemnity (the shipowner's legal liability). Inland marine insurance extended those concepts onto dry land as goods began moving by rail and truck rather than only by ship.
Inland marine covers three broad exposures. First, property in domestic transit — goods on a truck, in a warehouse en route, or shipped by parcel carrier. Second, instrumentalities of transportation and communication, such as bridges, tunnels, pipelines, and transmission towers. Third, movable or high-value personal and commercial property written on floaters: jewelry, fine art, musical instruments, camera equipment, contractors' tools and equipment, and similar items that travel with the owner. Because coverage follows the property rather than a fixed location, a floater protects the insured item wherever it goes.
Inland marine policies are usually written on an open perils (all-risk) basis with few exclusions, and valuable items are often scheduled individually at an agreed value. That makes inland marine the standard solution when a homeowners or commercial property policy imposes sublimits — a homeowners policy might cap jewelry theft at a small dollar figure, while a scheduled floater insures each piece for its appraised value with no deductible. The Nationwide Marine Definition governs which classes of property insurers may write as inland marine rather than as ordinary property coverage.
Property, casualty, and personal lines licensing exams test this material in the specialty policies section. Be ready to distinguish ocean marine from inland marine, to name the four ocean marine coverages, to recognize floaters as the vehicle for movable property, and to separate inland marine from other limited policies such as flood insurance, which is written through the National Flood Insurance Program.
Key takeaways
- Ocean marine insurance covers hull, cargo, freight, and protection and indemnity exposures on the water.
- Inland marine covers property in domestic transit, instrumentalities of transportation and communication, and movable or specialized property.
- Floaters are inland marine forms that follow the covered property wherever it goes, rather than insuring a fixed location.
- Inland marine coverage is typically open perils, and high-value items are often scheduled at an agreed value.
- The Nationwide Marine Definition determines what property classes may be written as inland marine.