Long-haul crashes produce the highest-severity auto judgments in trucking, and a highway-speed collision with a fully loaded tractor-trailer is the accident that draws a nuclear verdict. Shippers and brokers routinely require $2M to $5M of excess auto stacked above a $1M primary, so semi fleets carry the tallest towers and the widest gap between the FMCSA floor and the limit a real verdict demands.
Umbrella insurance for trucking companies
Adds liability limits above the policies your fleet already carries. When a covered claim exhausts your commercial auto, general liability, or employers liability limit, the umbrella pays the rest, plus the defense the underlying policy stops funding.
Why Coverwatch
- Markets for high excess
- Specialty excess and surplus markets that will stack $5M or $10M over a trucking auto primary, the exact tower a standard carrier will not build once a fleet runs long-haul lanes or heavy units.
- Limit adequacy vs the FMCSA floor
- 60+ markets put head to head on the cost per added million and the limit a catastrophic truck accident can actually draw, not the $750K federal filing floor that clears a checklist but not a nuclear verdict.
- Schedule of underlying
- We confirm the auto, general liability, and employers liability limits meet the umbrella's attachment floor and appear on the schedule, so a gap under the tower never becomes a gap the umbrella inherits.
For trucking
- What it covers
- Liability claims for injury to other people or damage to their property, once the trucking primary beneath the umbrella has used up its limit.
- What it doesn't
- A gap the primary itself excludes, which the umbrella inherits rather than fills, and a self-insured retention on any line with no primary underneath it.
Trusted by 60+ carrier partners
What does trucking umbrella insurance cover?
Trucking umbrella insurance covers liability claims above the limits of the policies your fleet carries. When a catastrophic truck accident or injury claim exhausts your commercial auto, general liability, or employers liability limit, the umbrella pays the remainder plus continued defense. It does not pay first-dollar claims, cargo, or anything the primary excludes.
Why trucking umbrella coverage depends on the auto primary
An umbrella is defined by what sits beneath it. For a motor carrier that is the commercial auto liability primary above all.
The auto primary is the layer that blows
A multi-vehicle crash with serious injuries produces a judgment far above a $1M commercial auto limit.
The FMCSA floor is a minimum, not a limit
The federal financial-responsibility floor is $750K for general freight, up to $1M for oil and certain hazardous substances.
Shippers and brokers set the real number
Freight brokers require $1M primary auto to book a load, and large shippers and their vendor agreements commonly require $2M to $5M of additional excess or…
How we get you covered
We take commercial umbrella for trucking to 60+ markets, build it to fit your contracts, and keep your certificates compliant.
Read your risk
We map what could actually go wrong in your operation, where a claim would come from, and who would bring it.
Shop 60+ markets
We take your risk to the carriers that know your class and make them compete on price and terms.
Build the endorsements
We add the endorsement wording that decides whether the policy responds to a claim, beyond the base form.
Keep you compliant
We handle the COIs, additional-insured certs, and renewals, so you are never the one chasing paperwork.
Get a quoteFlat fee, no markup on your premium.
What's covered, and what isn't
In the policy
Excess commercial auto liability
The core of a trucking umbrella.
Excess general liability
When a bodily-injury or property-damage claim not arising from a covered auto exhausts your general liability limit, the umbrella pays the rest.
Excess employers liability (Part B)
Sits over the employers liability section of workers compensation, the Part B coverage typically required at $500,000 each.
Drop-down and additional defense once a primary exhausts
Once an underlying policy is used up it stops paying for defense.
Not in the policy
Damage to the freight you haul
Loss of or damage to the cargo in your trailer is a first-party freight loss, not a third-party liability claim, so the umbrella never reaches it.
Covered by Motor Truck Cargo
Physical damage to your own truck
Repairing or replacing your own tractor, trailer, or equipment after a crash, fire, or theft is a first-party property loss.
Covered by Commercial Auto
Anything the trucking primary excludes
If your commercial auto or general liability policy excludes a vehicle, a driver, a use, or a hazard, the umbrella inherits that exclusion.
Workers compensation benefits (Part A)
Statutory medical and wage benefits owed to an injured driver under Part A of workers compensation are paid by that policy, not the umbrella.
Covered by Workers Compensation
Punitive damages where uninsurable
Many states bar insuring punitive damages as a matter of public policy, and a nuclear trucking verdict often includes a punitive component.
Get a quoteGet a policy built for trucking.
Claims commercial umbrella pays
The same accident produces very different excess exposures depending on which primary it burns through. These are the claims that push a trucking company into the umbrella layer, with the typical excess band each can reach.
ScenarioHow the claim happensTypical cost
Catastrophic auto accident over the primary limit
A power unit causes a multi-vehicle crash with serious or fatal injuries.
$1M–$10M+
Nuclear verdict against the fleet
A single accident produces a jury award in the tens of millions, driven by a reptile-theory trial and allegations of unsafe dispatch or hours-of-service…
$10M–$30M+
Multi-claimant crash
One collision injures several occupants of other vehicles at once.
$1M–$10M
Employers liability suit over Part B
A driver injury becomes a lawsuit alleging the carrier's conduct beyond the workers compensation bargain.
$500K–$3M
Ranges are typical excess-layer exposure bands for these claim types, not a quote. Actual exposure depends on fleet size, radius, commodity, underlying limits, and the size of the verdict.
Get a quoteGet covered before a claim lands.
What trucking buyers are required to carry
The limits contracts and statutes set for this line, and what moves your premium and terms.
What buyers require
- FMCSA financial-responsibility floor
- $750K–$5M by commodity
- Freight broker agreement
- $1M primary auto
- Shipper contract
- $2M–$5M excess/umbrella
- Large-shipper vendor requirement
- $5M+ total limits
Under 49 CFR 387.9, the minimum public-liability filing is $750,000 for general freight, up to $1,000,000 for oil and certain hazardous substances, and $5,000,000 for hazmat such as explosives and poison gas. This is the floor to operate, not an adequate limit.
Most freight brokers will not book a load without $1M in primary commercial auto liability on file, and many require additional excess or umbrella stacked above it before they will tender freight to the carrier.
Large shippers commonly require $2M to $5M of umbrella over the auto primary in the transportation agreement, with the shipper named as additional insured up the full tower rather than only on the primary layer.
National retailers and manufacturers moving high volumes frequently set $5M or higher total auto liability as a vendor onboarding requirement, and specify the additional-insured and follow-form wording the umbrella has to satisfy before the carrier is approved.
What sets your cost and terms
- Fleet size and power units
- Premium tracks the number of power units and drivers the tower sits over.
- Operating radius and lanes
- Long-haul and interstate operations carry far higher accident severity than local and short-radius work.
- Loss history and safety scores
- A run of at-fault accidents, and CSA and safety scores that show hours-of-service or maintenance problems, set the rate and can force a higher retention.
- Commodity, hazmat, and underlying limits
- Hauling hazmat, oversize, or high-value freight raises severity and can force a higher FMCSA floor and a taller tower.
How this changes by trucking segment
The policy is the same product; the exposure, the limit, and the exclusions to watch shift by segment.
Tow operators face a different excess story. The umbrella sits over the auto primary, but the on-hook and garage exposures, damage to the vehicle in tow and to customer cars on the lot, drive their own primaries beneath it.
Dump trucks run mostly local and short-radius, which lowers frequency, but heavy units on job sites and public roads still carry elevated accident severity. Construction contracts and general contractors often require an umbrella over the auto primary with additional-insured status, so the excess limit is driven as much by the job-site contract as by the miles the fleet runs.
Endorsements that close the gaps
The base form is the start. These add-ons are where the policy gets built to fit trucking.
MCS-90 endorsement (on the primary auto)
A federal endorsement that attaches to the primary auto policy, not the umbrella, under 49 CFR 387.15.
Schedule of underlying insurance
Lists every policy the umbrella sits over, with the required limit for each, starting with commercial auto.
Additional insured, follow form
CG 20 10 / CG 20 37Extends the umbrella's higher limit to the additional insureds named on the underlying policy, so a shipper or freight broker is covered up the full tower.
By the numbers
The filing floors, endorsement forms, and verdict data that surface when a trucking company sizes an excess tower or answers a shipper's evidence-of-insurance request.
- FMCSA financial-responsibility floors
- $750K / $1M / $5M by commodity
- MCS-90 endorsement and filing
- 49 CFR 387.15, filed on BMC-91
- Growth in $1M+ trucking verdicts
- $2.3M to $22.3M average
- Nuclear verdict threshold in trucking
- $10M+ defines a nuclear verdict
- Required underlying limits to attach
- $1M auto / $1M GL / $500K EL
Under 49 CFR 387.9 the minimum public-liability filing is $750,000 for general freight, up to $1,000,000 for oil and certain hazardous substances, and $5,000,000 for hazmat such as explosives and poison gas. These are filing floors to operate, not adequate excess limits, which is why carriers stack umbrella above them.
The MCS-90 is a federal endorsement on the primary auto policy that guarantees payment to the injured public up to the financial-responsibility floor, with a right of reimbursement from the carrier. Proof is filed electronically with FMCSA on form BMC-91 or BMC-91X. It is not excess liability for the carrier's own benefit.
ATRI found the average size of trucking verdicts over $1M rose from $2,305,736 to $22,288,000 between 2010 and 2018, a 967% increase, and the number of such cases rose 235% from 79 in 2005–2011 to 265 in 2012–2019. Severity at that scale drives how much excess a fleet must carry above its auto primary.
The trucking industry and ATRI define a nuclear verdict as an award in excess of $10 million, and roughly one in four nuclear-verdict accidents involves a commercial truck. A single such verdict blows through a $1M auto primary and lower umbrella layers, which is why fleets build tall excess towers.
Most umbrella carriers require minimum underlying limits before they attach over a trucking program: typically $1M commercial auto, $1M each occurrence general liability, and $500K employers liability under workers compensation, each shown on the schedule of underlying insurance.
Common questions
about commercial umbrella for trucking insurance
Trucking umbrella insurance covers liability claims above the limits of the policies your fleet already carries. It sits over your commercial auto, general liability, and the employers liability section of workers compensation, with the auto primary as the layer a catastrophic truck accident burns through first. When a covered injury or property-damage claim exhausts the underlying limit, the umbrella pays the rest, plus continued legal defense once the primary stops funding it. It does not pay first-dollar claims, it does not touch the cargo you haul or physical damage to your own truck, and it inherits whatever the primary excludes. A gap in your primary coverage is a gap the umbrella inherits.
Two inputs set the tower, and you carry the higher of the two. The first is the total limit your shippers and freight brokers demand. Brokers book loads over a $1M primary, and large shippers often require $2M to $5M of umbrella stacked above it, with additional-insured status up the full tower. The second is what a catastrophic truck accident in your lanes could cost. Trucking verdicts over $1M have averaged well into the tens of millions, and one highway crash can dwarf a primary limit. Long-haul and heavy operations need far more excess than local short-radius work. Size to a realistic worst case for your operation, not the FMCSA filing floor and not the average claim.
No, and treating them as the same leaves a serious gap. The MCS-90 is a federal endorsement on your primary auto policy under 49 CFR 387.15. It guarantees payment to an injured member of the public up to the financial-responsibility floor, currently $750,000 for general freight and up to $5,000,000 for hazmat, and the insurer can seek reimbursement from you afterward. It is a public-protection filing, not extra limit for your benefit. A trucking umbrella is real excess liability that pays above your auto primary for your account and does not seek reimbursement. The MCS-90 satisfies the federal minimum; the umbrella is what carries you from that minimum to the limit a nuclear verdict and a shipper contract actually demand.
Both, but the auto primary is why a fleet buys one. The umbrella sits over your commercial auto liability, your general liability, and the employers liability section of workers compensation, each listed on the schedule of underlying insurance. For a motor carrier the commercial auto layer is the one that matters most, because a catastrophic truck accident produces the judgment that blows through a $1M primary and keeps climbing. General liability and employers liability sit under the same tower for a terminal injury or a driver lawsuit, but the auto primary is the layer the umbrella is really built to back. If a line is not scheduled underneath, the umbrella does not extend it.
Because the FMCSA financial-responsibility floor is a filing minimum, not an adequate limit. Under 49 CFR 387.9 a general-freight carrier files $750,000, oil and certain hazardous substances up to $1,000,000, and hazmat such as explosives and poison gas $5,000,000. Those numbers let you operate legally, but a single serious truck accident routinely produces a judgment far above them. Trucking verdicts over $1M have averaged in the tens of millions, and nuclear verdicts reach far higher. The gap between the federal floor and a real jury award is exactly what the umbrella fills, and it is also why freight brokers and shippers demand $1M to $5M or more of excess above the primary before they will contract with the carrier.
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