Electronic Code of Federal Regulations
49 CFR Part 395 — Hours of Service of Drivers
Current duty-status, supporting-document, ELD integrity and retention requirements.
Commercial trucks
GuideWeSpeakLaw EditorialUpdated August 24, 2026Sources reviewed
Beyond the crash report, federal rules may create duty-time, dispatch and maintenance records. Knowing what each record is—and is not—makes the story easier to follow.
Verification ledger
Electronic Code of Federal Regulations
Current duty-status, supporting-document, ELD integrity and retention requirements.
Electronic Code of Federal Regulations
Current federal scope, inspection, maintenance and recordkeeping requirements.
Federal Motor Carrier Safety Administration
FMCSA's plain-language description of how ELDs record driving time.
A commercial-truck crash may produce the same scene records as any serious collision: a police report, photographs, witness accounts and medical or repair records. Depending on the carrier, driver and trip, federal rules may create another layer tied to duty time, dispatch and vehicle maintenance.
Do not assume every truck or trip falls under every cited rule. The regulations contain scopes and exceptions, and the facts determine which provisions apply.
For drivers and carriers covered by 49 CFR Part 395, a record of duty status tracks categories such as driving, on-duty time and off-duty time. The rule generally requires carriers to retain the required duty-status records and supporting documents for at least six months.
Supporting documents can include trip or dispatch records, certain expense receipts, fleet-system communications, and payroll or settlement records. Read together, they can help reconstruct a workday. They do not automatically explain the cause of a crash.
An electronic logging device synchronizes with the vehicle's engine and automatically records driving time. Under the current rule, edits are controlled and the original hours-of-service information may not be altered or erased.
That makes the data useful, but not self-explanatory. A careful review may compare the log with dispatch records, locations and other supporting documents while accounting for exceptions, annotations and possible device problems.
Part 396 requires covered carriers to systematically inspect, repair and maintain vehicles under their control. Required records identify the vehicle, planned inspection or maintenance work, and the date and nature of work performed; the rule also sets retention periods.
Those records can show what was scheduled or done. They do not prove, by themselves, that a condition caused a collision or that a person or company is legally responsible. The vehicle, the records and the crash facts still have to be connected with evidence.
Updated August 24, 2026. No corrections are recorded.