What Is Motor Truck Cargo Insurance and Who Needs It?

Motor truck cargo insurance covers a for-hire trucker's legal liability for loss 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 demand proof of it before tendering freight.

When operating trucks for hire, this policy provides protection from a possible five-figure claim due to one bad shipment. The amount owed to a shipper is based on the terms outlined in the Bill of Lading and federal law. More claims are settled under the exclusions listed in cargo forms than the limits stated.

What is motor truck cargo insurance?

Motor truck cargo insurance protects a trucking company from liability resulting from damage to cargo in their trailers. If a shipment is lost, stolen, short or damaged while being transported by a carrier (for hire), the shipper will file a claim with the carrier. Cargo policies pay claims filed by shippers, up to the limits of the cargo policy, when a covered cause of loss is behind it.

It sits in the inland marine insurance family because it covers property in transit rather than at a fixed location, and it fills a hole the business auto policy leaves open. Auto liability covers injury and damage the truck does to other people, never the load inside the trailer. A business hauling only its own goods buys an owners' 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 transports. The shipper never has to prove the driver did anything wrong. It shows only that the goods left in good condition, arrived damaged or short, and cost a set amount, and the burden flips to you. The carrier escapes just 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. Read them the way courts do. A hijacker is not a public enemy, and driving into a forecast nor'easter forfeits the act of God defense.

The liability picture changes with the type of carrier, which is why underwriters ask how you operate:

The bill of lading that the driver signs at pickup determines how much of the loss the carrier will pay. If there is a "released" bill of lading that limits the carrier's potential liability to a certain amount (e.g., often a few cents per pound), this is only applicable where the shipper has a viable option as to which level of liability the shipper may choose. Federal timing applies in terms of claims filing. Pursuant to 49 U.S.C. 14706(e), the shipper gets at least 9 months to file a written claim, and can bring an action against the carrier for damages within 2 years from the carrier's denial.^[1] The cargo insurer investigates before it pays, and the check rarely matches the invoice, because salvage and unpaid freight charges come off the top.

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 scheduled power unit) and typically during loading and unloading. Collision, overturn, fire, and theft are the core perils on every form. Policies usually have an invoiced value + accrued/prepaid expenses as their valuation, but if there was no invoice generated then the insurance company would default to actual cash value. Better forms also cover debris removal in addition to a modest pollutant cleanup limit, so chemical carriers still pair cargo coverage with pollution liability on the auto policy.

The exclusions are where cargo claims die, and most are conduct-based rather than peril-based. 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 someone who walks a delivery to the door and returns 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 parallel 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 carrying 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 as of March 21, 2011, and the BMC-32 endorsement filing, that for-hire property carriers had completed for decades.^[2] Prior to this removal, the old minimums were $5,000 per vehicle and $10,000 per occurrence, both well below the actual value of typical shipments.^[2] Therefore, the Agency determined that the filing did not serve much purpose. Household goods motor carriers and freight forwarders are the exception. These types of carriers will continue to need to show proof of cargo coverage. In addition, note that filing for cargo is different than the MCS-90 endorsement that adds to your auto liability policy. The MCS-90 guarantees the federal public liability minimums for damages caused by bodily injury or property damage or for environmental restoration. The MCS-90 is unrelated to the freight you haul in your trailers, and having the MCS-90 on your policy does not mean you have cargo coverage.

How much cargo insurance do truckers need?

Although the federal floors are gone, the market determines the number and enforces through contractual agreements, so you should always determine what your own agreement requires to protect yourself since brokers verify the certificate prior to tendering one single load. If you haul refrigerated food, electronics or any type of cargo that can be easily stolen then shippers will want you to carry higher limits.

The right limit is the value of the heaviest 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 land in the excess and surplus lines market, where forms vary even more and non-admitted carriers are not backed by state guaranty funds. Get the quote in front of a broker who reads trucking forms, and make the certificate match 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.

The Bottom Line

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 your shipper and broker contracts do, usually at $100,000 or more. The exclusions decide most claims, so pull your unattended-vehicle and reefer warranties and read them against how your drivers actually run before the next renewal.