You Got Rear-Ended. FMCSA Still Called It Preventable. Here’s How to Fix That.

Reviewed by Cameron Pechia, Founder, WA Insurance License 71186
Last reviewed: 10/23/2026

Key takeaway: You can challenge a preventable accident with FMCSA through the agency's Crash Preventability Determination Program (CPDP), a formal review run through DataQs. File a Request for Data Review with a police accident report and supporting evidence, and if FMCSA agrees the crash wasn't preventable, it comes out of your Crash Indicator BASIC calculation and gets noted on your Pre-Employment Screening Program (PSP) record. This applies to any motor carrier or driver whose commercial vehicle was in a crash matching one of FMCSA's 21 eligible crash types, and it matters because brokers and insurance underwriters are reading your safety data more closely than ever.

Your driver was stopped at a red light. Fully stopped. The car behind him wasn't paying attention and plowed into his rear bumper.

Six weeks later, that crash shows up on your CSA Crash Indicator score anyway. FMCSA doesn't ask who caused a wreck before it counts. It counts the event. Fault gets sorted out later, if you bother to sort it out.

I get calls about this more than almost anything else. A fleet owner sees a crash dinging his BASIC percentile and swears the report is wrong. The report isn't wrong. It's just incomplete, because nobody told FMCSA the other guy ran the light.

There's a fix for that. It's called the Crash Preventability Determination Program, and it runs through a system most fleet owners have heard of but never actually used: DataQs.

What does FMCSA mean when it calls a crash "preventable"?

A crash is "preventable" under FMCSA's Crash Preventability Determination Program (CPDP) when the agency determines a driver failed to do everything reasonably possible to avoid it, based on the evidence submitted. That standard sounds simple until you're the one arguing it, because FMCSA's default position on every recordable crash is that it counts against your Crash Indicator BASIC score unless you prove otherwise.

The CPDP exists because FMCSA's Safety Measurement System (SMS) was built to log crashes, not referee them. Every recordable crash your fleet has gets logged the same way whether your driver was fully at fault, fully a victim, or somewhere in between. FMCSA only reviews for preventability when someone asks it to, through a Request for Data Review (RDR) filed in DataQs.

That's the part that trips people up. Preventability isn't assumed in your favor. You have to go get it.

What's the difference between a DOT-recordable accident and a preventable one?

A DOT-recordable accident and a preventable accident are two different classifications, and confusing them is the most common mistake fleet owners make when deciding whether to fight a crash. A DOT-recordable accident is defined under 49 CFR 390.5 as any crash on a public highway involving a fatality, an injury requiring immediate treatment away from the scene, or a vehicle towed from the scene with disabling damage. That definition has nothing to do with fault. A crash counts as recordable even if your driver was parked and hit from behind by someone going 60.

Preventability is a separate, second-layer question FMCSA only answers if you ask. A crash can be fully recordable and still get a Not Preventable determination through the CPDP. Recordable tells FMCSA a crash happened. Preventable tells FMCSA who should own it. Don't let a broker or an underwriter conflate the two. They're not the same conversation.

Which crash types can you actually challenge through DataQs?

FMCSA will only review a crash for preventability if it fits one of 21 specific crash types the agency expanded to on December 1, 2024, and if it doesn't fit one of those categories, filing an RDR is a waste of your time. The list covers most of what fleet owners actually call me about:

• Struck in the rear, or struck on the side at the rear
• Struck on the side by a motorist traveling the same direction
• Struck by a motorist going the wrong way, making an illegal U-turn, or running a traffic control device
• Struck while legally stopped or parked, including unattended
• Struck by someone under the influence, having a medical event, falling asleep, or distracted
• Struck by cargo, debris, or an animal, or caused by infrastructure failure
• Involved in a suicide attempt, a crash with a non-motorist, or a rare scenario like being struck by an aircraft
• Any crash where video evidence shows the full sequence of events

That last category is the one most fleets don't know exists. If your dashcam or a nearby business's camera caught the whole thing, you may qualify for review even if the specific mechanics don't match any other category on the list.

How do you file a Request for Data Review (RDR)?

You file a Request for Data Review by logging into FMCSA's DataQs system, selecting the crash record you want reviewed, and submitting a police accident report along with evidence showing your driver couldn't reasonably have prevented it. This is a true step-by-step process, and skipping a step is the most common reason RDRs come back Undecided instead of Not Preventable.

Here's how it works:

1. Register or log into DataQs using your USDOT number.
2. Start a new request and select "Crash, Inspection, Investigation, or Audit" as the request type.
3. Find the specific crash record you want reviewed.
4. Choose "Crash could not be prevented" and confirm the crash matches one of the 21 eligible types.
5. Upload the police accident report. This is mandatory. No PAR, no review.
6. Attach every piece of supporting evidence you have: dashcam video, photos, witness statements, insurance paperwork.
7. For a fatal crash, include drug and alcohol test results. FMCSA requires them.
8. Submit and wait. Average processing time is currently running around 90 days because of submission volume.

What evidence actually gets a "preventable" finding reversed?

The evidence that actually moves a preventability review is anything that documents what happened without requiring the reviewer to take your word for it: the police accident report, dashcam or third-party video, and physical evidence like point-of-impact photos and vehicle damage. FMCSA reviewers weren't at the scene. They're working entirely off what you send them, which means a written narrative alone rarely wins.

I see this most on two crash types: rear-end collisions where our driver was fully stopped, and side strikes where the other vehicle drifted into the lane. In both cases, the CSA score doesn't care who hit whom. It just logs the event. The RDRs that come back Not Preventable almost always have dashcam footage attached. The ones that come back Undecided usually only have a narrative and a police report that doesn't clearly assign fault.

If your trucks don't have forward and rear-facing cameras yet, this is the argument for installing them that has nothing to do with defending a lawsuit. It's about winning a data review six months from now, for a crash you haven't had yet.

How does a "Not Preventable" determination change your CSA score and insurance renewal?

A Not Preventable determination removes that specific crash from the calculation of your Crash Indicator BASIC percentile, one of the seven scores FMCSA uses to prioritize carriers for safety interventions. The crash itself doesn't disappear. It still shows up on FMCSA's public Safety Measurement System, just with a notation that FMCSA reviewed it and found it wasn't preventable. For a driver, that same notation lands on their PSP record, which matters the next time they're job hunting.

For your insurance renewal, the effect is more indirect but still real. Underwriters pull your BASIC percentiles as part of pricing your risk, and a Crash Indicator score inflated by crashes that weren't your fault is a score that's lying about your actual risk profile. Clean that up before renewal, not during it. We're a Highway Certified Insurance Agency, and post-Montgomery, brokers are reading these same numbers before they'll tender you a load. A fleet that's already cleared its non-preventable crashes off its Crash Indicator walks into that conversation with a cleaner story than one that hasn't bothered.

What a preventability determination does not do

A preventability determination through the CPDP does not establish legal liability, fault, or negligence in any civil or criminal proceeding, and it has no effect on your safety rating or your ability to operate. FMCSA says this directly in its own program materials: the determination is made by reviewers with no personal knowledge of the crash, based only on what you submit, and it isn't meant for use in litigation.

That matters for two reasons. First, don't expect a Not Preventable finding to help you in a lawsuit tied to the same crash. It won't carry legal weight there. Second, don't assume a Preventable finding means you're at fault in a legal sense either. It just means your Crash Indicator BASIC keeps counting that crash. Treat the CPDP as what it is: a data correction tool for your federal safety record, not a verdict.

If you write commercial trucking insurance and want your CSA profile and your coverage reviewed together instead of separately, that's worth doing before a renewal forces the conversation.

If you've got a crash sitting on your record that wasn't your driver's fault, don't let it ride there through your next renewal. Pull your DOT number, look at what's tagged as recordable in the last 24 months, and figure out which of those crashes actually qualify for a CPDP review. If you want a second set of eyes on your coverage, your exposures, and how your current CSA profile is likely to be read at renewal, get a quote at Pullsure Trucking Insurance and we'll walk through it together.

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