Electronic evidence
What should I know about truck cameras, black boxes, telematics and electronic data?
Separate dash camera video, driver-facing video, engine control data, telematics, ELD and phone records, and identify who may hold each one.
Quick answer
A commercial truck may create several electronic records: forward and driver-facing video, engine control data, telematics, GPS, collision alerts, ELD duty-status files, dispatch messages and phone records. They are not one black box and may be held by different vendors. Federal rules require some ELD records, but there is no general federal retention period for truck camera footage or engine control data.
Where this comes from
You can check the original sources
We checked these government, court and medical sources on August 24, 2026. Each link opens the original page so you can read it for yourself.
| Source | Where it applies | What it helps explain | Date checked |
|---|---|---|---|
| Electronic Code of Federal Regulations | United States | The federal rule for motor carrier responsibilities involving electronic logging devices and backup records. | Current Electronic Code of Federal Regulations; retrieved August 24, 2026 |
| Federal Motor Carrier Safety Administration | United States | FMCSA's guide to SAFER, the Safety Measurement System and its open data resources. | Live public source; retrieved August 24, 2026 |
01
Name the system before asking for the data
Photograph camera housings, dashboard devices and vendor labels if it is safe. The carrier may use one vendor for ELD and another for cameras or telematics. The truck manufacturer or engine maker may supply engine data. A dispatch platform may hold messages and route events. Naming the device, vendor and account holder makes a request much more precise.
- Forward and driver-facing camera vendor
- Engine, telematics and GPS systems
- ELD, dispatch and mobile communication platforms
Sources for this section
02
Do not invent an overwrite date
Camera and telematics vendors use different storage policies, event triggers and account settings. Engine modules differ by make and configuration. If no federal rule sets a retention period, a page should say there is no federal period, not replace that gap with an industry guess. The carrier contract and vendor policy may provide the actual answer for that system.
- No general federal camera-footage retention period
- No general federal engine-module retention period
- Vendor and carrier policy may control actual storage
Sources for this section
Free companion tool
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Turn the facts you remember into an organized records list. The tool does not give a verdict, value or legal deadline.
Questions
Short answers that stand on their own
Is the ELD the truck's black box?
No. An ELD records duty status. Engine control modules, cameras and telematics are different systems.
How long does truck camera footage last?
There is no single federal retention period. The vendor, account settings and carrier policy may control it.
A quick reality check
What this page can and cannot tell you
This page cannot decide how the crash happened, who was at fault, whether a carrier controlled the trip, whether a particular record exists, insurance coverage, case value or a legal deadline. Public carrier data and vehicle categories are starting points for finding records; they do not establish responsibility or legal eligibility. A licensed attorney must review the complete facts and current law.
When you are ready
You do not need every record to start
Tell us what happened and share what you already have. A licensed attorney can look at the full picture and ask about anything that is missing.
Last updated
August 24, 2026
We checked the answer and every source link on this date.
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Delivery van and box truck crashes: records beyond the driver
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What to record when a truck leaves the scene
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You can start with what you remember
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