What Is Inland Marine Insurance and Why Do Farm Operations Need It?

Inland marine insurance is one of those coverage categories that sounds obscure until you understand what it does — and then it becomes obvious why farm operations need it.

The name is a historical artifact. In the early days of insurance, marine policies covered goods transported by ship. As commerce expanded inland, “inland marine” policies emerged to cover goods transported overland. Today, inland marine is the coverage type used for property that is mobile, moves between locations, or is stored somewhere other than your primary insured address. For agricultural operations, that describes a lot of what you own.

What standard farm property insurance covers — and where it stops

A standard farm property policy covers the physical assets of your operation: buildings, equipment, stored commodities, and livestock — primarily when they’re located on your insured property. That coverage works well for things that stay put.

Where farm property coverage gets complicated is when equipment or property leaves the farm. Standard property policies are written around a fixed location. Equipment that moves — to a leased field across the county, to a custom harvesting job, to a repair shop, to a sale, or to a neighbor’s property — may fall outside the coverage provided at your primary insured location.

Inland marine insurance fills that gap. It follows the property rather than being tied to a fixed address.

What inland marine covers for farm operations

In an agricultural context, inland marine coverage is most commonly used for:

Farm equipment in transit: combines, tractors, planters, sprayers, and other equipment being transported between locations — to a custom job, to a repair facility, or between owned parcels. Standard farm property coverage may not fully apply while the equipment is moving.
Equipment at off-site locations: machinery working a leased field miles from the home farm, or equipment stored at a second location over winter. If the equipment isn’t at the address listed on your policy, coverage may be limited.
Precision agriculture technology: GPS guidance systems, yield monitors, planter monitors, variable rate controllers, and other electronic systems. These are high-value, portable, and not always clearly covered under standard farm equipment schedules.
Drones and UAVs: increasingly common on modern farms for scouting and application purposes. Drones are specifically excluded from most standard farm policies and require inland marine or a dedicated policy.
Irrigation equipment: portable pivot systems, wheel lines, and above-ground irrigation infrastructure that moves between fields and is difficult to cover under a standard structures policy.
Livestock equipment and portable handling systems: portable corrals, squeeze chutes, working tubs, and similar equipment used at multiple locations.
Tools and equipment at temporary locations: hand tools, small implements, and portable equipment used at job sites away from the main operation.

How inland marine differs from farm property coverage

The key distinction is mobility and location. Farm property coverage is location-based — it covers things at the place your policy describes. Inland marine coverage is property-based — it covers specific items or categories of property wherever they happen to be.

This distinction matters most for operations that:

Farm multiple parcels spread across a wide area
Provide custom harvesting or other services at other farms
Regularly move equipment between locations for seasonal operations
Have leased land or a second operation location that’s separate from the home farm

For a compact operation where equipment rarely leaves the home farm, standard farm property coverage may be adequate. For larger or more dispersed operations, inland marine fills coverage gaps that most producers don’t realize exist until equipment is damaged or stolen away from home.

Scheduled vs. blanket inland marine coverage

Like other property coverage, inland marine can be structured on a scheduled or blanket basis:

Scheduled coverage: each piece of equipment is listed individually with its own insured value. More precise but requires maintenance as equipment is bought, sold, or replaced.
Blanket coverage: a combined limit applies to all covered property without itemizing each piece. More flexible and easier to administer, but the combined limit needs to be adequate for everything you might need to claim at once.

For high-value items — a late-model combine, a sophisticated precision ag system, a drone fleet — scheduled coverage with a specific insured value provides the clearest protection. For smaller or more numerous portable items, a blanket approach may be more practical.

Covered causes of loss under inland marine

Inland marine policies are typically written on broader coverage forms than standard farm property. Many inland marine policies are “all-risk” or “open peril” forms — meaning they cover any cause of loss that isn’t specifically excluded, rather than only named perils.

Common covered causes include fire, theft, collision during transport, vandalism, and accidental damage. Common exclusions include wear and tear, mechanical breakdown (that’s equipment breakdown coverage territory), and intentional damage. The specific form matters — review it with your agent to understand exactly what’s included and excluded.

The growing role of precision ag technology

Modern farming relies increasingly on high-value electronic systems: GPS receivers, auto-steer systems, yield monitors, planter monitors, field sensors, and the tablets and controllers that interface with all of them. A well-equipped combine or planter can have $30,000 to $50,000 or more in precision agriculture technology installed on it.

This technology is both valuable and vulnerable. It’s installed in equipment that operates in harsh environments, gets transported regularly, and is frequently updated or replaced. Standard farm equipment schedules often don’t specifically account for the value of installed precision systems, and the equipment’s insured value may not reflect what it would cost to replace those systems after a covered loss.

If your operation uses significant precision ag technology, it’s worth a specific conversation with your agent about how it’s covered — both as part of the equipment it’s installed on and as standalone components that may move between machines.

Helpful resources

If your operation farms multiple locations, uses equipment at off-site jobs, or has high-value portable equipment that moves regularly, inland marine coverage is worth a specific look. It’s one of the most commonly overlooked gaps in farm insurance programs — and one of the more straightforward ones to close. The team at Graybeal Group is happy to review your current program and flag anything that might be falling through the cracks.