What is motor truck cargo insurance?

Motor truck cargo insurance covers exactly one thing: the freight in your trailer. Everything else on the road — the people you could hit, the truck itself, the trailer — belongs to other policies. Most owner- operators meet cargo coverage not as a choice but as a line in a broker’s carrier packet, so the useful questions are what the coverage actually pays for, why it isn’t federally required, and where the forms quietly differ.

One truck, four policies

Cargo forms also carry working parts liability policies don’t: one national carrier’s form pays debris removal for spilled loads, “sue and labor” costs to protect damaged cargo from further loss, and earned freight for undelivered loads. How the filed liability side works is on what insurance a trucking company needs.

Not federally required — with one exception

FMCSA eliminated the cargo insurance filing requirement for most for-hire property carriers in a 2010 rulemaking. The exception it kept: household goods carriers, who must still maintain cargo security — $5,000 per vehicle and $10,000 per occurrence under 49 CFR 387.303 — because the regulation exists to compensate individual shippers, the one class of customer that can’t protect itself by contract. Unless you’re moving household goods, no federal filing backs your cargo coverage.

The broker packet is the real requirement

What replaced the federal mandate is contractual and, in practice, stricter. Brokers and shippers require proof of cargo coverage before tendering freight, and the carrier packet states the minimum limit and names the certificate holder — the same certificate mechanics that run the rest of commercial insurance. Platform freight works the same way — Amazon Relay sets its own cargo requirements for enrolled carriers, and when owner-operators compare notes, it’s the packet requirement, not the regulation, they’re trying to meet. Size the limit to the freight you actually haul — a reefer of pharmaceuticals and a flatbed of lumber are different loads to insure, and the packet minimum is a floor, not a recommendation.

Where cargo forms actually differ

Cargo forms are not standardized, so two policies with the same limit can respond very differently. Verified examples from the incumbent forms:

• Commodity exclusions. One national form excludes pharmaceuticals, tobacco, alcohol, and most live animals; specialist brokers flag hazardous materials the same way. If your commodity is on the exclusion list, your certificate is decorative.
• Storage time limits. The same form covers cargo in transit, including while parked — but excludes cargo stored beyond 72 hours. Loads that sit in a yard over a weekend can age out of coverage.
• Handling losses. Damage from improper packing is a standard carve-out; refrigeration breakdown is typically an endorsement you add for reefer work, not a default.

Compare quotes on the exclusion list and the theft and storage conditions, not the premium. And before paying a small cargo loss out of pocket to protect your record, read claim or pay out of pocket.

Questions carriers actually ask

What does motor truck cargo insurance cover? Loss of or damage to the freight while it’s in your care — by collision, fire, theft, or vandalism — plus, on many forms, debris removal, sue and labor, and earned freight.

Does cargo insurance cover theft? Theft is a named peril on the standard forms, but the conditions do the work: storage time limits and commodity exclusions decide whether a stolen load is actually paid.

Does cargo insurance cover loading and unloading? Forms differ on where coverage attaches and detaches — in-transit language, parked vehicles, and storage limits are all defined terms. Get the answer from the form for your policy, not from a general rule.

Motor truck cargo vs. inland marine — which is it? Both: motor truck cargo is written as an inland marine form, the branch of property insurance built for goods in transit. Importers buying coverage for ocean freight are shopping a different product.

How much cargo insurance do I need? The higher of what your broker packets demand and the real value of your typical load. There are no published per-commodity benchmarks; underwriters price the commodity, radius, and security measures you declare.

Sources are linked below. The federal requirement and its household-goods exception are cited to the regulation and the FMCSA rulemaking; form exclusions are cited to named carrier and broker documents rather than generalized.