Motor truck cargo insurance: what to verify before a loss
A cargo limit on a certificate tells a broker that a policy exists. It does not tell you whether this load, this commodity, or this kind of loss is covered. That answer is in the policy, and the time to find it is before dispatch.
Written by Rigo Diaz
Cargo coverage by the record
Motor truck cargo insurance covers loss of or damage to freight in transit, within the limits, commodities, covered causes of loss, and conditions written in your policy. It does not cover the truck, and a certificate showing a cargo limit does not prove that a given load or loss is covered.
A load arrives damaged, the customer calls, and the carrier pulls up a certificate with a cargo limit on it. That is a hard moment to learn that the commodity, the place the trailer was parked, or the contract you signed is treated differently by the policy.
I spent more than six years in risk management before I founded Simplex, and I have led it for more than 25 years since. This guide covers what a cargo policy is built to do, where the gaps usually sit, and a short routine to close them before the freight moves. For what drives the premium and how to compare quotes, see our companion guide to motor truck cargo insurance cost.
The full briefing, read aloud
7 chapters. Select one to jump to it.
Generated with AI text-to-speech from this article's key insights, in order, rather than reading it word for word. Chapter times come from a transcript of the audio. The article itself was written and reviewed by Rigo Diaz.
Key takeaways
Cargo insurance covers freight, not the truck
It responds to loss of or damage to property in transit. Your tractor and trailer need physical damage coverage, and harm to others needs auto liability.
A certificate is evidence, not coverage
It shows that a policy and a limit exist. The policy form, declarations, and endorsements decide whether a loss is paid.
Gaps hide in the details of the load
Check unlisted commodities, value above the limit, theft conditions, reefer losses, and freight handed to another carrier.
Your contract can promise more than your policy
Broker and shipper agreements can set cargo terms of their own. The insurer pays under the policy wording, not the contract.
Make coverage a dispatch question
Set clear triggers that pause an unusual load until someone confirms the coverage in writing.
In this articleContents
What does motor truck cargo insurance cover?
Motor truck cargo insurance covers loss of or damage to property while it is in transit on your trucks. IRMI describes it as an inland marine form, and the exact protection depends on which form your insurer uses.
For a for-hire carrier, the exposure comes from federal law. Under the Carmack Amendment, 49 U.S.C. 14706, a carrier that issues a receipt or bill of lading is liable for the actual loss or injury to the property it hauls, without the shipper having to prove negligence. The cargo policy is how you fund that liability.
Carrier's liability form or owner's form?
Most for-hire carriers need a form that covers their legal liability for other people's freight. A business hauling its own goods on its own trucks needs a form that covers property it owns. Ask your agent which one you have, because the two respond to different losses.
Named perils or open perils?
A named perils form pays only for causes of loss it lists, such as fire, collision, or theft. An open perils form covers any cause not specifically excluded. Read the exclusions list either way: it is where most cargo surprises are written.
| What was lost or damaged | Coverage that usually responds | What to confirm |
|---|---|---|
| The freight you are hauling | Motor truck cargo | Commodity, limit, sublimits, exclusions |
| Your tractor or trailer | Physical damage | Stated values and deductible |
| Another person's vehicle or property in a crash | Auto liability | Limits against the federal minimum and your contracts |
For how these lines fit together, see our overview of types of commercial truck insurance coverage.
Is a certificate of insurance proof a load is covered?
No. A certificate of insurance is evidence that certain types of coverage and limits were purchased. It does not show the commodities, exclusions, sublimits, deductibles, or conditions that decide how a particular loss is handled.
Texas spells this out in its Insurance Code: a certificate is not a policy, does not amend, extend, or alter the coverage, and gives the holder no new rights beyond the policy and its endorsements. A certificate in Texas may not even reference requirements from a contract other than the policy itself.
So before you tell a customer "we are covered," read three documents together:
- The declarations: the limit per vehicle and per occurrence, the deductible, and any scheduled commodities or vehicles
- The cargo coverage form: what counts as covered property, the covered causes of loss, and the exclusions
- The endorsements: anything that adds, removes, or caps coverage, such as a commodity sublimit or a theft condition
Two carriers can show the same cargo limit on a certificate and have very different protection behind it.
Which cargo coverage gaps should you check before accepting a load?
Check the gaps that change with the load: what it is, what it is worth, where it stops, whether it needs temperature control, and who touches it. Each is a question to answer before the freight is on your trailer.
A commodity the policy does not list
Cargo forms can exclude or cap certain commodities, and a policy rated for packaged dry goods may treat electronics, alcohol, or pharmaceuticals very differently. Treat a new commodity as a coverage question, not just another load.
A load worth more than the limit
If a covered loss exceeds your limit, the difference is yours. A sublimit is part of the main limit, not added to it, so a specific commodity or cause of loss can carry less than the headline number. Sizing the limit is covered in our guide to cargo insurance cost.
Theft and where the trailer stops
Theft wording can depend on where and how a loaded trailer was left. Ask whether the policy carries conditions for unattended vehicles, required locks, or approved parking, and turn the answers into instructions drivers can follow. Our guides to cargo theft prevention and freight fraud cover the stops and the fictitious pickups that create these claims.
Temperature-controlled freight
A reefer load can be lost with no visible damage. Under the FDA's sanitary transportation rule, 21 CFR 1.908, food that may have had a material temperature-control failure must not be sold unless a qualified individual determines it is still safe.
When a written agreement makes you responsible for sanitary conditions, including temperature, you must pre-cool to the shipper's specification and, on request, show you held the operating temperature, for example with loading and unloading readings or trip temperature data. Ask whether refrigeration breakdown is covered by your form, excluded, or available only by endorsement, and see our guide to precooling a trailer.
Freight handed to another carrier
If a load is interlined, cross-docked, or moved by a partner carrier, confirm whether your policy follows the freight once it leaves your equipment. If your broker agreement prohibits re-brokering, the same handoff can also breach the contract.
Can a contract promise more than your cargo policy covers?
Yes. A broker or shipper agreement can set cargo terms of its own, such as a minimum limit, how a loss is valued, notice deadlines, or an indemnity. The insurer pays under the policy wording, so anything the contract promises beyond it stays with your business.
Federal law also lets a carrier and shipper agree in writing to limit the carrier's liability to a declared value, if that value is reasonable under the circumstances (49 U.S.C. 14706(c)). Agreements can move your exposure up or down, so read the cargo clause before you sign, and again whenever a customer sends a new version.
Is cargo insurance required by FMCSA?
Only household goods carriers must file cargo security with FMCSA, under 49 CFR 387.301T(b). For general freight, the requirement comes from your contracts and the value you haul, which is why the contract review above matters more than any federal number.
How to check motor truck cargo insurance before dispatch
Make the coverage check part of accepting a load, not part of handling a claim. Five steps keep it short.
Step 1: Write down your freight profile
List the commodities you haul, the highest value per load, routes, overnight parking, transfers, and any temperature needs. Give the same profile to your agent so the policy is built on it.
Step 2: Match the profile to the policy
Compare each line with the declarations, coverage form, and endorsements. Every item the policy does not clearly address is a question for your agent.
Step 3: Set triggers that pause a load
A new commodity, a value above your usual maximum, an unplanned drop or transfer, a reefer requirement, or a new customer contract sends the load to whoever owns insurance before it is booked.
Step 4: Get the answer in writing
Ask your agent to confirm coverage questions by email or endorsement, and keep the answer with the load file.
Step 5: Decide who reports a loss
Name who calls the insurer, by when, and what the driver records at the scene. The driver's side of that routine is in our guide to documenting damaged cargo.
How Simplex helps you close cargo coverage gaps
We start with the freight you actually haul, then check that the policy and your contracts say the same thing.
Cargo coverage built on your freight
Our insurance team reviews your commodities, highest-value loads, and contracts before quoting motor truck cargo coverage.
Protection for the equipment
Cargo insurance does not cover the truck. Pair it with physical damage coverage for your tractors and trailers.
The whole insurance stack
Review cargo alongside auto liability and general liability through our commercial truck insurance options.
Frequently asked questions
Does motor truck cargo insurance cover the truck?+
Is a certificate of insurance enough to show a load is covered?+
Does cargo insurance cover reefer breakdown?+
When should a carrier review its cargo policy?+
Where this information comes from
The legal and regulatory points below come from federal statute, eCFR, the Texas Insurance Code, and IRMI's insurance definitions, all checked on October 16, 2026. Cargo policy wording varies by insurer, so confirm your own coverage with a licensed agent.
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1
U.S. Code — 49 U.S.C. 14706 (GovInfo)
Carmack liability for the actual loss or injury to property, and limits by written declared-value agreement.
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2
eCFR — 49 CFR 387.301T
Household goods carriers must file cargo security; other carriers file public liability only.
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3
eCFR — 21 CFR 1.908
Carrier pre-cooling and temperature-demonstration duties, and food after a temperature-control failure.
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4
Texas Insurance Code, Chapter 1811
A certificate of insurance is not a policy and confers no new rights on the holder (1811.051, 1811.152–1811.154).
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5
IRMI — Motor truck cargo
An inland marine form covering property in transit, with protection depending on the form used.
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6
IRMI — Carmack amendment
Carrier liability for cargo without proof of negligence, first enacted in 1906.
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7
IRMI — Named perils coverage
Named perils versus all risks (open perils) ways of defining covered causes of loss.
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8
IRMI — Certificate of insurance
A certificate is evidence that general types of coverage and limits were purchased.
Written by
Rigo Diaz
Founder & CEO, Simplex Group
Founder and CEO of Simplex Group, with more than 25 years leading the company and helping trucking entrepreneurs navigate compliance, insurance, and the day-to-day demands of running a carrier. Before founding Simplex, he spent more than six years in risk management, experience that continues to shape how he approaches insurance, compliance, and carrier risk today.
Published · Updated
Related articles and services
Know what your cargo policy will do before the freight moves
Pick one recent high-value or unusual load and put its paperwork next to your policy and endorsements. If you cannot say what would happen after a theft, damage, or temperature loss, you have found the agenda for your next insurance review.
If you want a second look at your cargo coverage against the freight and contracts you actually run, talk to our team.