Motor Truck Cargo Insurance: What It Is and Who Needs It

Motor truck cargo insurance covers a for-hire trucker's legal liability for loss of or damage to the freight it hauls for others. It is an inland marine coverage, not part of the auto policy, and it responds when a load is destroyed in a wreck, stolen from a trailer or spoiled in transit and the shipper looks to the carrier to pay. Since 2011 the FMCSA has not required most carriers to carry it, but shipper and broker contracts require proof of it before they hand over freight.

For a for-hire trucking business, one bad load can mean a five-figure claim. What the carrier owes the shipper depends on the bill of lading and federal law, and more cargo claims are decided by a form's exclusions than by its limit.

What is motor truck cargo insurance?

Motor truck cargo insurance protects a trucking company against liability for damage to the freight in its trailers. When a shipment is lost, stolen, short or damaged while a for-hire carrier is hauling it, the shipper claims against the carrier, and the cargo policy pays that claim, up to its limit, when a covered cause of loss is behind it.

It belongs to the inland marine insurance family because it covers property in transit rather than at a fixed location, and it fills a gap the business auto policy leaves. Auto liability covers injury and damage the truck causes to other people, never the load inside the trailer. A business hauling only its own goods buys an owner's cargo or transportation policy instead, because it has no liability to a customer for the load.

How does carrier liability work under the Carmack Amendment?

The Carmack Amendment, enacted in 1906 and now part of the ICC Termination Act, makes an interstate common carrier strictly liable for the goods it hauls. The shipper never has to prove the driver did anything wrong. It only shows that the goods left in good condition, arrived damaged or short, and how much they were worth, and then the burden shifts to the carrier. The carrier escapes in only five ways: an act of God, an act of a public enemy, an act or default of the shipper, action of public authority, or the inherent vice of the goods. Courts read these narrowly. A hijacker is not a public enemy, and driving into a forecast nor'easter gives up the act of God defense.

Liability depends on the type of carrier, which is why underwriters ask how you operate:

The bill of lading the driver signs at pickup decides how much of a loss the carrier pays. A "released" bill of lading can limit the carrier's liability to a set amount, often a few cents per pound, but only if the shipper had a real choice of liability levels. Federal law also sets claim deadlines: under 49 U.S.C. 14706(e), the shipper must have at least 9 months to file a written claim and at least 2 years from the carrier's written denial to sue.^[1] The cargo insurer investigates before it pays, and the check rarely matches the invoice, because salvage and unpaid freight charges are deducted first.

What does cargo coverage pay for, and what voids it?

Motor truck cargo coverage pays for direct physical loss to covered freight from a covered peril while the load is in your care, typically on a scheduled power unit and usually during loading and unloading. Collision, overturn, fire and theft are the core perils on every form. Policies usually value the load at invoice value plus accrued or prepaid charges, and fall back to actual cash value when there is no invoice. Better forms also cover debris removal and a modest pollutant cleanup limit, so chemical haulers still pair cargo coverage with pollution liability on the auto policy.

The exclusions are where cargo claims fail, and most turn on conduct rather than the cause of loss. Unattended vehicle provisions are the most litigated: theft coverage often applies only if a driver or owner-operator is in or on the vehicle when the theft happens, so a driver who walks a delivery to the door and comes back to a looted trailer has no coverage. Insurers write the same idea as warranties requiring locked trailers, kingpin locks or fenced overnight lots. Refrigerated haulers face a similar trap. Base forms cover spoilage only when a covered peril, such as a collision, knocks out the refrigeration unit, so a reefer that simply fails needs its own endorsement, which comes with fuel and inspection warranties. Miss the documented inspections and a $200,000 melted load is entirely yours. Cargo forms also commonly exclude target commodities such as jewelry, precious metals, art and furs, plus contraband, money and your own employees' dishonest acts.

Is motor truck cargo insurance required by the FMCSA?

For most carriers, no. The Federal Motor Carrier Safety Administration (FMCSA) removed its cargo insurance requirement, and the BMC-32 endorsement filing for-hire property carriers had made for decades, effective March 21, 2011.^[2] The old minimums were $5,000 per vehicle and $10,000 per occurrence, well below the value of a typical load,^[2] so the agency decided the filing did little. Household goods carriers and freight forwarders are the exception and still must show proof of cargo coverage. Cargo filing is also different from the MCS-90 endorsement on your auto liability policy. The MCS-90 guarantees the federal public liability minimums for bodily injury, property damage and environmental restoration. It has nothing to do with the freight in your trailer, and having it does not mean you have cargo coverage.

How much cargo insurance do truckers need?

With the federal floor gone, contracts set the number, so check what your own agreements require: brokers verify the certificate before they tender a single load. A typical broker-carrier agreement requires $100,000 of cargo coverage,^[3] and shippers of refrigerated food, electronics or other easily stolen freight ask for more, commonly $250,000 for reefer loads.^[4]

Set the limit at the value of the most valuable load you actually book, not the average, because the policy pays per occurrence. A $1,000 deductible is common, and carriers with theft losses see $2,500 or more on target commodities. New-authority carriers and fleets with claims often end up in the excess and surplus lines market, where forms vary even more and non-admitted carriers are not backed by state guaranty funds. Have a broker who reads trucking forms review the quote, and make sure the certificate matches what your shipper contracts promise.

This guide is for educational purposes and summarizes standard ISO and AAIS policy language. Your policy's specific terms, conditions, and endorsements control. Talk to a licensed broker about your actual exposures.

What to check on your cargo policy before renewal

Before your next renewal, read your unattended-vehicle and reefer warranties against how your drivers actually run, and check the excluded commodities list against what you haul. Motor truck cargo insurance pays what a for-hire trucker legally owes a shipper for freight damaged, stolen or lost in transit. No federal rule has required it since 2011, but shipper and broker contracts do, usually at $100,000 or more, and the exclusions decide most claims.