Trucking insurance guide

Iowa's $5 Million Truck Damages Cap Has Twelve Ways Out

Iowa Code 668.15A caps pain and suffering at five million dollars. It does not cap medical bills, lost earnings, or the twelve findings that erase the cap entirely.

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What Iowa actually capped

Iowa is one of a few states that put a hard number on what a truck crash lawsuit can pay for pain and suffering. Senate File 228 passed in 2023, took effect July 1 of that year per the Des Moines firm Whitfield and Eddy, and sits in the Iowa Code at section 668.15A.

The statute caps noneconomic damages at five million dollars per plaintiff against the owner or operator of a commercial motor vehicle, in any civil action involving the operation of a vehicle requiring a commercial driver's license, and it applies regardless of how many derivative claims or theories of liability get pleaded. The section defines noneconomic damages as pain, suffering, inconvenience, physical impairment, mental anguish, loss of chance, loss of consortium, and any other nonpecuniary damages.

Read that list twice. The cap protects one column of a verdict form. The other column is untouched, and if you carry commercial truck insurance in Iowa that is the column that should be setting your limits.

A white sleeper truck tractor parked alone on a gravel shoulder beside a harvested Iowa cornfield in dense morning fog, with an empty two lane highway and a grain bin fading into the mist.
Iowa's worst truck files tend to start on a rural two lane, not an interstate.

The cap never touches the biggest number

Economic damages are not capped in Iowa. Medical bills, future care, and lost earnings sit outside section 668.15A, and in a catastrophic injury they are the larger figure.

The Iowa Supreme Court showed that on April 3 2026 in McQuillen v. West Side Transport. On a foggy afternoon in March 2020 a semi driver made an unprotected left turn across Highway 151 near Anamosa, and a southbound car with the right of way hit the side of the trailer. Its driver suffered severe traumatic brain injuries and about one hundred skull fractures. A Linn County jury set her damages at 35,793,475 dollars, which the court described as including future medical expenses exceeding 10 million dollars on their own. Fault came back 73 percent to the defendants and 27 percent to her, and judgment entered at 26,129,236.80 dollars. The supreme court affirmed.

That crash predates section 668.15A, so the cap did not apply to it. The shape is the point. The largest component the court named, future medical expenses over 10 million dollars, is economic, and no cap on pain and suffering would have moved it.

$5MCap on noneconomic damages
12Findings that void the cap
$35.8MJury damages in McQuillen
Jan 2028First inflation adjustment
Sources Iowa Code 668.15A and the Iowa Supreme Court in McQuillen v. West Side Transport, 2026

Twelve findings that erase it

Subsection 3 is the part that should change how you run. On a plaintiff's motion, before judgment is entered, the court shall not apply the cap if it finds by a preponderance of the evidence that the negligent act involved any of twelve things.

The list opens where you would expect, with an alcohol concentration of .04 or more, drug impairment, refusing chemical testing, a felony involving a motor vehicle, distributing a controlled substance from the truck, and human trafficking. Then it keeps going. Reckless driving. Using an electronic communication device while driving. Speeding fifteen miles per hour or more over the limit. Violating any law restricting a phone, computer or tablet while operating. Knowingly driving on a revoked, suspended, canceled or disqualified CDL, or without possession of a CDL or learner's permit valid for the vehicle.

A phone in a hand, fifteen over on a rural two lane, or a driver in a vehicle his license class does not cover are ordinary Tuesday problems, and the same behaviors land on your CSA score at a roadside inspection. Note who decides and how. A judge decides, not a jury, on a preponderance of the evidence rather than beyond a reasonable doubt.

A truck driver keeping both hands on the steering wheel of a semi cab while his smartphone sits untouched in a dashboard cradle, running a straight two lane highway through flat farmland.
A cradle and a written phone rule are the cheapest way to keep the cap alive.

The same act made punitive damages more attractive

Senate File 228 also amended Iowa Code section 668A.1. In most Iowa cases, where the conduct was not directed specifically at the claimant, a punitive award pays the claimant no more than 25 percent after costs and fees, with the rest going to a civil reparations trust fund. The act exempted commercial motor vehicle cases, so the claimant collects all of it.

Read the two changes together. Iowa capped pain and suffering, then routed 100 percent of punitive damages to the claimant in the same cases. That leaves a plaintiff's lawyer one clear road, which is to prove conduct bad enough to beat subsection 3 and support punitive damages, so both limits fall away at once.

A companion section, 668.12A, points the same way. If the employer stipulates the driver was its employee acting in the course and scope of employment, the court dismisses the direct negligent hiring claim, so the case becomes entirely about the driver's conduct, which is the same conduct that decides whether the cap survives.

What this means for your limits

Do not let a cap talk you into thinner coverage. It never touches economic damages, it does not pay defense costs, and twelve findings can remove it outright. Size your commercial auto liability limits against the uncapped part of a verdict, the part that grows with a young claimant and a long life care plan. Our guide on what commercial truck insurance costs shows what the extra limit adds.

Then shut the doors in subsection 3 while they are cheap. Put a written hands free phone rule in place and enforce it with telematics, treat fifteen over as a firing offense, and confirm every driver holds the class and endorsements the actual vehicle requires.

We place coverage for owner operators and small fleets running Iowa every week. Get a truck insurance quote in under a minute on our quote form, or call or text 423-264-4255 and we will go through your limits and your Iowa truck insurance options together.

Common questions

Does Iowa cap damages in truck accident lawsuits?

Only partly. Iowa Code section 668.15A caps noneconomic damages at five million dollars per plaintiff against the owner or operator of a commercial motor vehicle requiring a CDL. Noneconomic means pain, suffering, mental anguish, physical impairment and loss of consortium. Economic damages such as medical bills, future care and lost earnings are not capped at all.

What voids the Iowa truck damages cap?

Twelve findings listed in subsection 3. They include an alcohol concentration of .04 or more, drug impairment, refusing chemical testing, reckless driving, speeding fifteen miles per hour or more over the limit, using an electronic communication device while driving, and operating without a CDL valid for the vehicle. A judge decides on a preponderance of the evidence, so ordinary driving behavior can remove the cap.

Can I carry lower liability limits because of the Iowa cap?

No. The cap applies to one column of a verdict and leaves medical bills, future care and lost earnings uncapped, and it does not cover your defense costs. Limits should be sized against the part a cap cannot reach. Get a truck insurance quote or call and text 423-264-4255 and we will look at what your current limits would actually absorb.

Will the five million dollar Iowa cap change?

Yes. Section 668.15A directs the Iowa secretary of state to adjust the limit for inflation on January 1 2028 and on January 1 of each even numbered year after that, using the consumer price index for all urban consumers for the Midwest region. The adjusted figure is certified and published within fourteen days of the information becoming available.

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