How to read a commercial-vehicle crash report

Two documents, not one

Most states produce a standard crash report and a commercial-motor-vehicle supplement. The face sheet looks like a car crash: diagram, contributing factors, insurance boxes. The supplement is where the USDOT number, the GVWR, the cargo, the sequence of events, and the carrier name are supposed to live. Ask for both. A report that is missing the supplement is missing the identification you need.

Crash reports are written quickly, often from what was said at the scene. Company names get shortened. USDOT numbers get a digit wrong. Trailers get attributed to the wrong carrier. Treat the report as a lead, then confirm it against the door photos and the federal record.

What the boxes actually mean

Fatal, injury, and tow-away are reporting categories, not a medical diagnosis and not a liability finding. "Tow-away" means a vehicle was towed because of disabling damage. An airbag deployment in a drivable car may not make that box. A tractor with a locked axle will.

Contributing-factor checkboxes are an officer's on-scene view. They are useful and they are not the end of the fact record. Hours-of-service status, speed from the ECM, and the load's dispatch time will not be on the report because the officer did not have those files yet.

From the report to the federal file

Take the USDOT number or the company name from the supplement and run the carrier lookup. Take the crash date and run the evidence table. If the report names a different company than the door, pull both. 49 CFR 390.15 is why the carrier should also have its own accident-register entry for a qualifying crash. Ask for that entry in the preservation letter, and do not assume the police report and the register will match.