What are Preventable vs. Non-Preventable CMV Crashes?
Realizing some crashes are beyond a CMV driver’s control, the Federal Motor Carrier Safety Administration (FMCSA) created its Crash Preventability Program. But, what's considered preventable?

The FMCSA identifies several crash types as non-preventable.
Photo: Getty Images
The designation of a commercial motor vehicle (CMV) crash has serious implications. If the event appears as preventable, it impacts a motor carrier’s CSA Crash Indicator BASIC score and Accident Factor in the event of a compliance review.
Realizing some crashes are beyond a CMV driver’s control, the Federal Motor Carrier Safety Administration (FMCSA) created its Crash Preventability Program. In this program, the status of the crash can be challenged by motor carriers, drivers, or other parties by submitting a Request for Data Review (RDR) through the agency’s DataQs portal.
Qualifying Crashes
The FMCSA identifies several crash types as non-preventable. CMV crashes meeting the specific criteria and occurring on or after August 1, 2019, are eligible for consideration.
An eligible CMV crash involves being struck:
In the rear or side at the rear;
By a motorist driving in the wrong direction or making a U-turn or illegal turn;
When legally stopped at a traffic control device or parked;
By a vehicle failing to stop or slow in traffic or stop at a traffic control device;
By a driver operating a motor vehicle under the influence, according to state law, or by another motorist who was involved in such a crash;
By a driver who experienced a medical issue contributing to the crash;
By a driver who admitted falling asleep or being distracted;
By cargo, equipment, or debris, or as the result of an infrastructure failure;
By an animal; or
By an individual committing or attempting to commit suicide.
Another eligible crash category involves accidents that seldom occur and don’t meet another eligible crash type, such as being struck by an airplane or skydiver or being struck by a deceased driver.
Be Prepared to Prove Your Case
When using DataQs to challenge the preventability of a crash, the burden of proof is on the RDR submitter. The party must provide compelling evidence that the crash meets the criteria.
The RDR must be accompanied by a police accident report. For fatal crashes, the request must include drug and alcohol test results or explain why a test was not performed.
Submitters are encouraged to provide other supporting documents with their request, including videos, photographs, and court documents.
If the crash does not meet one of the eligible crash types, the RDR will be closed.
When the RDR is Successful
If a crash is deemed non-preventable, the FMCSA will:
Remove the crash from the carrier’s Crash Indictor calculations and indicate in the Safety Management System that the crash was not preventable; and
Add a note to the Pre-Employment Screening Program (PSP) to indicate that the crash was not preventable, reducing the odds that the driver involved wouldn’t be hired due to crash history.
Note that the crash must remain on the motor carrier’s accident register even though it is considered non-preventable. In the event of an audit, the motor carrier would alert the investigator that the specific crash was determined to be non-preventable, so it is not included in the accident rate.
More Safety

How Detroit Assurance with Active Brake Assist Works
Do you want to see what it is like to experience Detroit Assurance’s Active Brake Assist? In this video, Work Truck will put you in the cab to see how it all works and then hear more details from DTNA’s Mike Young.
Read More →
Get Left of Loss: A 5-Step Workplace Prevention Framework for Fleet Operators
Violence risks do not stop at the driver’s door. Learn five practical steps fleets can take to spot threats early and protect workers before loss occurs.
Read More →How Better Visibility Cut Speeding Violations by 48%
Fleet leaders don't need more data, they need clearer visibility into what the data is saying. This case study explores how one utility replaced speeding-event counts with a single metric — miles driven in violation — to strengthen safety and significantly reduce speeding violations.
Read More →
13 Safe Driving Tips for Commercial Vehicle Drivers
Make sure you are spending time on the road safely with these important tips.
Read More →
Recalls You Need to Know About in July 2026
If you have Altec, Ford, General Motors, Harbinger, Hyundai, Mack Trucks, or Volvo Trucks vehicles in your fleet, you should check these important recalls issued by the National Highway Safety Administration.
Read More →
How Telematics Is Transforming Fleet Risk from Insight to Action
What if you could spot risky driving before it leads to a crash? See how telematics is still changing fleet safety today.
Read More →
DOT Rules Remain Firmly Lit on Marijuana
DOT says not so fast on marijuana. Even with federal reclassification efforts, commercial drivers in safety-sensitive roles remain subject to marijuana testing and prohibitions.
Read More →
Lytx Adds Fleet Management Enhancements to LytxOne Platform
Lytx has added new features to LytxOne to bring safety, operational insight, asset visibility, and compliance into a unified, all-in-one platform.
Read More →
A Fourth of July Cargo Theft Reality Check for Fleet Managers
The Fourth of July creates prime conditions for cargo theft. Here's what fleet managers should review now to protect loads, drivers and operations.
Read More →
What is DataQs and Why Should Fleets Care?
Watch to learn how FMCSA's DataQs system helps fleets challenge inaccurate safety data, protect CSA scores, and improve compliance records.
Read More →
