How to Prove a Truck Driver Was Too Tired

How do you prove a truck driver was too tired to drive?

With records, not testimony. No driver says he fell asleep. Fatigue gets proved by reconstructing where the truck actually was, hour by hour, from documents the carrier generated itself, and then showing that the driving time does not fit inside the limits the federal rules allow.

What are the federal limits on driving hours?

For property-carrying drivers, the main limits are these, and they are published by the Federal Motor Carrier Safety Administration:

An 11-hour driving limit after 10 consecutive hours off duty. A 14-hour window, meaning the driver may not drive beyond the fourteenth consecutive hour after coming on duty. A required 30-minute break after eight cumulative hours of driving without an interruption of at least 30 minutes. And a 60 hours in 7 days or 70 hours in 8 days on-duty limit, which can restart after 34 or more consecutive hours off duty.

There is also a sleeper-berth provision letting a driver split the required 10 hours off duty into an 8 and 2 or 7 and 3 pairing.

Which records show what really happened?

The electronic logging device is the starting point, not the finish. The ELD records driving and duty status, but it records what the system was told as well as what it detected, so on its own it can be tidy and wrong.

The proof comes from cross-checking it against records the driver did not curate: fuel purchase receipts with times and locations, toll records, weigh station data, dispatch messages, delivery timestamps and bills of lading, and GPS or telematics pings. When the log says the driver was in a sleeper berth at 2am and a fuel receipt puts the truck 200 miles away at 2:20am, the log is the thing that is wrong.

How long do we have to get those records?

Not long, and that is the practical point of this whole article. Under 49 CFR 395.8(k)(1), carriers must keep records of duty status and supporting documents for not less than six months, and 49 CFR 395.22(i)(1) sets the same six-month period for ELD data and its back-up. Six months is a floor, not a promise, and once it passes the ordinary destruction of those records is not misconduct.

A written preservation demand naming these records, sent early, is what stops the clock being a problem. That process is set out in more detail in how to preserve a truck’s black box and ELD data.

Why does fatigue matter beyond the driver?

Because the pattern usually starts above him. Schedules that cannot be met legally, dispatch pressure, and pay structures that reward speed produce tired drivers, and the records that prove fatigue often also show who set the schedule.

That is a question about the carrier’s own conduct rather than one man’s bad night, and it is where the documents tend to lead. A Lafayette truck accident lawyer can pursue both.

Hours-of-service problems concentrate on long-haul runs, which is most of what moves through Lafayette on I-10 and I-49. If a rig hit you, see how 18-wheeler claims differ.