Fatigue is one of the most common and most preventable causes of serious truck crashes. A driver of an 80,000-pound truck who has been awake too long reacts slowly, drifts, and misjudges distance, and the federal hours-of-service rules exist to keep that from happening. When a carrier or a driver ignores them, the electronic records often prove it.
What the hours-of-service rules require
The federal rules in 49 C.F.R. Part 395 set hard limits on a commercial driver’s day. A property-carrying driver may drive at most 11 hours, and only after 10 consecutive hours off duty. The driver may not drive past the 14th hour after coming on duty, and that 14-hour window does not stop for fuel, loading, or meals. A 30-minute break is required after 8 hours of driving. Over a week, the driver is capped at 60 hours in 7 days or 70 in 8, with a 34-hour rest to reset the clock. Break any of these, and the law has been violated.
The clearest example of the rules as a standard of care
Of all the ways a truck case resembles a malpractice case, the hours-of-service rules are the sharpest. They are a written, specific standard: a driver may operate only for defined periods, must take defined breaks and rest, and the whole thing is recorded. When a driver exceeds those limits, there is no argument about whether they were careful in some general sense, there is a documented, enforceable rule and a record showing it was broken. That is exactly how a breach of the standard of care works in a malpractice case, and it is just as powerful in front of a jury, because the rule exists for one reason, to keep exhausted drivers off the road, and the violation shows the carrier or driver ignored it. Matching the hours the rules allowed against the hours the driver ran, and showing the gap, is often the backbone of a fatigue case.
A fatigue case is proven in the records, and pulling the true story out of the logs is exactly the forensic work I do. As an ACS-CHAL forensic lawyer-scientist who spent years defending DUI cases, I learned to cross-check what a document claims against what the data shows, and that is how you catch a driver who was over hours: the electronic logging device, the fuel and toll receipts, the dispatch records, and the black box all have to line up. A carrier starts scrubbing that trail the day of the wreck, so I move fast to preserve it before it is gone. I represent injured people, not insurers, and as a trial lawyer who came up as a public defender and cross-examined witnesses constantly, I am willing to try the case, which is often what moves an insurer to pay fair value. I handle your case personally, from the first call through trial. Learn more about my background.
The electronic logging device tells the story
For decades drivers tracked their hours on paper logbooks so easy to falsify the industry nicknamed them comic books. Since late 2017, most commercial drivers must use an electronic logging device that ties into the truck’s engine and records driving time automatically. That changed these cases. The device records when the truck moved, when the driver claimed to be resting, and crucially, any edits made to the log after the fact. Set against the dispatch orders, the fuel and toll receipts, and the black box, it can expose a driver who was over hours or a carrier that pressured one to keep rolling.
Fatigue is the carrier’s responsibility too
A tired driver is rarely just a tired driver. Behind the wheel is often a dispatch system that set an impossible schedule, a pay structure that rewarded speed over rest, and a carrier that did not police the hours it was required to. That is why a fatigue case so often reaches past the driver to the company, a theme I take up on who is liable.
Fatigue is usually built into the system
It is easy to blame a tired driver and stop there, and the deeper case usually reaches the company. Fatigue on the road is often the product of choices made above the driver: dispatch schedules that cannot be met without driving too long, pressure to deliver on unrealistic timelines, and pay structures that reward more miles and punish rest. When a carrier builds its operation so that following the hours-of-service rules costs a driver money or a job, it has made fatigue part of how it does business, and that is the carrier’s negligence, not just the driver’s. Proving it means going into the company’s records, the logs, the dispatch and scheduling data, the pay arrangements, and the electronic logging device data that can reveal a pattern of pushing limits. Like a systemic-negligence theory in a products or malpractice case, this shifts the focus from one tired person to the institution that put them behind the wheel exhausted, and it is frequently where the real accountability lies.
The deadline
For a crash on or after March 24, 2023, Florida gives you two years to sue under Fla. Stat. 95.11(5)(a). In a truck case the clock that matters most is shorter: the carrier only has to keep some logs and inspection records for a matter of months, so the real deadline for protecting the evidence is measured in weeks, not years. The logs and supporting records that prove fatigue have some of the shortest retention windows of all, so this is the evidence to protect first.
A fatigued-driving case looks simple and rarely is, because the tiredness usually traces back to how the company runs its business. I read the logs and the electronic device data against the hours the rules allowed, and I go into the scheduling, dispatch, and pay records to show when a carrier made fatigue part of its operation. I represent injured people, not trucking companies, and I hold the company, not just the exhausted driver, to the written rules that exist to keep tired trucks off the road.
Common Questions
How many hours can a truck driver drive in Florida?
Under the federal hours-of-service rules, a property-carrying driver may drive at most 11 hours after 10 consecutive hours off duty, may not drive past the 14th hour of the shift, must take a 30-minute break after 8 hours of driving, and may not drive after 60 hours in 7 days or 70 in 8. The 14-hour shift clock does not pause for breaks or meals.
How do you prove a truck driver was fatigued?
Mostly through the electronic logging device, which records when the truck was moving and when the driver was on and off duty. Compared against the dispatch records, fuel and toll receipts, and the black box, the logs can show a driver who was over hours, who edited the logs, or who was awake far longer than the law allows.
What is an ELD?
An electronic logging device, which most commercial drivers have had to use since late 2017. It connects to the truck's engine and automatically records driving time and duty status, replacing the paper logbooks drivers used to falsify. Its data, including any after-the-fact edits, is some of the strongest evidence in a fatigue case.
Isn't being a little tired just part of trucking?
Delivery pressure is real, but the hours-of-service limits exist precisely because a fatigued driver of an 80,000-pound truck is a danger to everyone around them. A carrier that pushed a driver past the limits, or looked the other way, is not excused by industry habit. The rule is the rule.
How long are the driver's logs kept?
Not long. The supporting documents behind the logs are generally only required to be kept for about six months, and other records have similarly short windows. That is why a preservation letter has to go out within weeks of the crash, before the proof of fatigue is gone.
Related: Truck accidents overview, Federal safety regulations, Evidence and the black box, Who is liable, and About Rory Safir.
This page is general information about Florida and federal law governing truck crashes, not legal advice, and it does not create an attorney-client relationship. The governing authority is the federal hours-of-service rule at 49 C.F.R. Part 395, along with the electronic logging device requirement, Fla. Stat. 768.81, and 95.11(5)(a). Every case is different, and past results do not guarantee a similar outcome. The hiring of a lawyer is an important decision that should not be based solely on advertisements.
