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CPDP

Crash Preventability Determination Program (CPDP)

The short answer

The Crash Preventability Determination Program (CPDP) lets motor carriers ask FMCSA to review whether an eligible crash was preventable. Requests are filed through DataQs with the police report and other evidence. Crashes found not preventable are removed from your Crash Indicator BASIC calculation and noted as not preventable on SMS and on drivers' PSP reports.

Eligible crash types

FMCSA accepts requests for a defined list of crash types where the truck driver typically couldn't have prevented the crash. Examples include when your truck was:

  • Struck in the rear by another vehicle
  • Struck while legally stopped or parked
  • Hit by a driver going the wrong direction or making an illegal turn
  • Hit by a driver who failed to stop at a traffic control device
  • Hit by a driver who was under the influence, or experiencing a medical issue
  • Involved in an animal strike, or hit by falling cargo, debris or infrastructure failure

See FMCSA's CPDP page for the full current list and eligibility rules.

How to submit a CPDP request

  1. Confirm the crash is on your FMCSA record and fits an eligible type.
  2. Get the police accident report. It's required.
  3. Collect supporting evidence: dash cam video, photos, witness statements, ELD data and diagrams.
  4. File the request in DataQs under the crash preventability category, with a clear explanation.
  5. FMCSA reviews it and posts a determination: not preventable, preventable, or undecided.

Why dash cams matter

Forward- and driver-facing cameras are the single best evidence in a preventability review, and they also help your insurer defend claims. Many of our fleet clients find that camera programs pay for themselves through better claim outcomes and CPDP wins.

What it means for insurance

Underwriters look at crash frequency, not just claims paid. A not-preventable determination documents that a crash wasn't your driver's fault, and removing it from the Crash Indicator helps your percentiles. Bring those determinations to renewal; we make sure underwriters see them.

Last updated November 10, 2026. Reviewed by a licensed insurance professional at Haul Good Insurance.

Frequently asked questions

Does CPDP remove the crash from my record?

No. The crash stays listed, but it is marked not preventable and excluded from your Crash Indicator BASIC percentile calculation.

Is a police report required for CPDP?

Yes. FMCSA requires the police accident report, and additional evidence like video and photos makes a stronger case.

Does a not-preventable decision show on PSP?

Yes. PSP reports note crashes that FMCSA found not preventable, which helps the driver when they apply for future jobs.

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