Understanding Truck Driver Fatigue and Road Safety Regulations
by AutoExpert | 27 February, 2025
Ever been on a long road trip and felt your eyelids getting heavy after a few hours behind the wheel? Now imagine doing that for a living, day in and day out, with an 80,000-pound vehicle under your control.
That's the reality for truck drivers who keep our economy moving by transporting everything from your Amazon packages to the food on your grocery store shelves. But there's a serious downside to all those hours on the highway – driver fatigue that can lead to devastating accidents.

That's why we have rules about how long these drivers can stay on the road. Let's break down what those rules look like and why they matter to all of us sharing the road.
The Federal Rules: By the Numbers
The Federal Motor Carrier Safety Administration (FMCSA) sets the rules for truck drivers crossing state lines. Here's the quick rundown:
- 11-hour driving limit: After getting 10 consecutive hours of rest, a driver can be behind the wheel for up to 11 hours. That's still a really long workday!
- 14-hour "on-duty" window: Once a driver starts their workday, they have a 14-hour window to do all their driving. This clock doesn't stop for breaks or naps – once it starts ticking, it keeps going until they hit 14 hours or take a full 10-hour break.
- 30-minute breaks required: Drivers need to take at least a 30-minute break after driving for 8 cumulative hours. (I don't know about you, but I need way more breaks than that on long drives!)
- Weekly limits: They can't drive after hitting 60 hours on duty in 7 days, or 70 hours in 8 days. They can "reset" this clock by taking 34+ hours off duty consecutively.
These rules aren't arbitrary – they're designed to make sure drivers get enough rest between shifts and don't push themselves beyond safe limits.

Florida Has Its Own Rules (Of Course)
If you're familiar with Florida, you know we like to do things our own way. For truck drivers who stay entirely within state lines, Florida's rules are slightly different:
- Drivers can be behind the wheel for up to 12 hours (vs. 11 federally) after 10 hours off duty
- Their workday window is 16 hours (vs. 14 federally)
- Weekly limits still cap at 70 hours in 7 days
Florida gives a little more flexibility, but the goal is the same – keeping dangerously tired drivers off the road.

Why These Rules Actually Matter
I've handled too many cases where fatigue played a role in serious truck accidents. The science is clear: being tired behind the wheel is surprisingly similar to being drunk. It:
- Slows down your reaction time
- Messes with your judgment
- Makes it hard to stay alert and focused
- Increases risk-taking behavior
When you're driving a four-thousand-pound car, that's dangerous enough. When you're handling an eighty-thousand-pound semi-truck? The consequences can be catastrophic.

These regulations help protect everyone – the truck drivers themselves (who deserve safe working conditions) and the rest of us sharing the roads with these massive vehicles.
What Happens When Drivers Break the Rules?
In the real world, these rules do get broken. Sometimes drivers feel pressured to make deliveries on impossible schedules. Sometimes they falsify their logbooks to make more money. When they do:
- Both the driver and their company can face steep fines
- The driver might be ordered out of service (meaning they can't drive) for a period
- If an accident happens, they face much greater legal liability
- In truly terrible cases involving deaths, criminal charges could be on the table
Been in an Accident with a Truck? Here's What to Do
If you've had the misfortune of being involved in a crash with a commercial truck, especially if you suspect the driver might have been pushing beyond legal hours:
- Call 911 immediately – These accidents often cause serious injuries that need prompt medical attention
- Document everything – Take photos of the scene, the vehicles, and your injuries if you can safely do so
- Get the driver's info – Name, employer, and insurance details are crucial
- Keep quiet about fault – Don't apologize or admit fault, even if you think you might have contributed
- Talk to a lawyer who knows truck accidents – These cases involve complex regulations and multiple liable parties

An experienced truck accident attorney can help investigate whether hours-of-service violations contributed to your crash. We can request the driver's logbooks, electronic logging device data, delivery schedules, and other evidence that might show they were driving while dangerously fatigued.
The bottom line? These regulations exist for a reason – to keep our roads safer for everyone. When they're violated, the consequences can be life-altering. Drive safe out there, and remember that even the most skilled truck drivers have human limitations when it comes to fatigue.