Federal law limits most truck drivers to 11 hours of driving per day

The Federal Motor Carrier Safety Administration (FMCSA) sets the rules that govern how long you can drive without a break. For most commercial truck drivers, the limit is 11 hours of driving in a single day, but only after you have had 10 consecutive hours off duty. This is the rule that matters most to your daily schedule.

The 11-hour rule applies to drivers of trucks weighing more than 10,000 pounds who cross state lines. If you drive within a single state only, your state may have different rules — some states allow 12 hours — but interstate commerce follows the federal standard. The clock resets after your required rest period, so understanding when your 11 hours begin and end directly affects your paycheck and your schedule.

Key Takeaways

  • You can drive a maximum of 11 hours per day after 10 consecutive hours off duty, under federal FMCSA rules for interstate trucking.
  • Your 14-hour on-duty window includes driving time, breaks, loading, unloading, and inspections — once 14 hours have passed, you must take a 10-hour break regardless of how much you drove.
  • You must take a 30-minute break if you have driven for 8 consecutive hours without one, and this break counts against your 14-hour window.
  • Violations of hours-of-service rules can result in fines for you and your employer, points on your commercial license, and potential out-of-service orders that prevent you from driving.
  • Intrastate drivers (staying within one state) may have different limits set by their state, so check your state's transportation department rules if you do not cross state lines.

The 14-hour on-duty window explained

The 11-hour driving limit sits inside a larger rule: your 14-hour on-duty window. This window includes every minute you are not off duty — driving, waiting at a shipper, fueling, inspecting your truck, eating at a truck stop, or sitting in traffic. Once 14 hours have passed since you came on duty, you must take a 10-hour break, even if you have only driven 6 hours that day.

This rule exists because fatigue compounds over a full shift, not just behind the wheel. A driver who spends 8 hours loading and unloading, then drives 3 hours, has been working 11 hours total. The FMCSA counts all of it. Your logbook (now electronic for most carriers) records every transition between on-duty and off-duty time, and roadside inspectors check these records.

The practical effect is that your actual driving time is usually less than 11 hours because of the 14-hour cap. If you spend 4 hours at a dock, you have only 10 hours left in your window, and you can drive at most 10 of those hours before you must stop for your 10-hour break.

The mandatory 30-minute break rule

If you drive for 8 consecutive hours without a break, you must take at least a 30-minute break before you can drive again. This break can be off-duty time, sleeper berth time, or yard moves — but it must be a genuine pause, not a rolling stop or a brief fuel stop. The break counts against your 14-hour on-duty window, so taking it reduces the time you have left to drive.

Many drivers take this break at a truck stop or rest area around the 7-hour mark to avoid running into the 8-hour hard stop. Some carriers build it into their dispatch instructions. If you miss the 30-minute break and continue driving past 8 hours, you are in violation, and the violation stays in your record if a roadside inspection catches it.

What counts as off-duty time

Only genuine off-duty time resets your clocks. Sleeping in your sleeper berth counts as off-duty time. Sitting in a truck stop parking lot with the engine off counts. Waiting for a load while not performing any work-related task counts. The moment you start working again — even if it is just pre-trip inspection or yard movement — your on-duty time resumes.

Sleeper berth time is special: if you split your 10-hour break into two periods (for example, 5 hours in the sleeper, then 5 hours off-duty at a truck stop), both periods count toward your required rest, and you can restart your driving clock. This flexibility helps drivers manage long hauls, but the total must add up to 10 consecutive hours within a rolling 24-hour period.

How violations are tracked and enforced

Every commercial truck driver is required to maintain a logbook — now an electronic logging device (ELD) for most carriers — that records your on-duty and off-duty time. The FMCSA requires these devices in trucks weighing over 10,000 pounds, and they sync with your truck's engine to prevent manual falsification. Roadside inspectors can read your ELD data in minutes and see exactly when you drove and when you rested.

Violations carry real consequences. A single hours-of-service violation can result in a fine for you (up to $1,000 for a driver in some cases) and a larger fine for your employer. Repeated violations can add points to your commercial driver's license (CDL), and enough points can result in suspension. An out-of-service order — which prevents you from driving — can be issued on the spot if an inspector finds a serious violation.

Your employer is also liable for violations, so most carriers have dispatch systems and monitoring software that alert you when you are approaching your limits. Some will not assign you a load if it would require you to violate hours-of-service rules. This is not the carrier being cautious — it is the carrier protecting itself from federal penalties.

Intrastate driving and state-specific rules

If you drive only within a single state and do not cross state lines, your state's transportation department may set different hours-of-service rules. Some states allow 12 hours of driving instead of 11. Others have different on-duty windows or break requirements. You need to know your state's rules if you work for a carrier that operates only intrastate.

The catch: if you ever cross a state line, even once, you fall under federal FMCSA rules for that entire trip. Many drivers work for carriers that mix intrastate and interstate work, so you may need to follow federal rules most of the time. Check with your dispatcher or your carrier's safety department about which rules explore to your specific routes.

Practical strategies for managing your hours

Experienced drivers plan their breaks around natural stopping points — fuel stops, meal breaks, or dock waits — rather than fighting the clock. Taking your 30-minute break early (around 7 hours of driving) gives you a full 8 hours to drive after it without hitting the mandatory break again. This is not required, but it smooths out your day.

Knowing your truck stop locations and planning your 10-hour breaks around them prevents you from being stuck on the side of the road when your 14-hour window expires. Some drivers use their sleeper berth strategically: a 5-hour nap in the sleeper, then 5 hours parked at a truck stop, lets them restart their clock and continue driving the same day if needed.

Your logbook is a legal document. Falsifying it — even by a few minutes — is a federal violation and grounds for when ready termination at most carriers. The ELD system makes falsification nearly impossible anyway, so the best strategy is to plan your route and your breaks honestly and let the system work as designed.

Frequently Asked Questions

Can I drive 11 hours every single day?

No. You can drive 11 hours only after a 10-hour break. If you drive 11 hours one day, you must take 10 hours off before you can drive again. Over a week, this means you will have days with less driving time because of the mandatory rest periods and the 14-hour on-duty window.

What happens if I run out of hours in the middle of a load?

You must stop and take your required break. Your dispatcher should plan loads so this does not happen, but if it does, you park and rest. Your carrier cannot force you to drive past your legal limit, and you cannot be penalized for stopping when the law requires it. Document the stop in your logbook.

Does my 30-minute break have to be continuous?

Yes. The break must be at least 30 consecutive minutes. You cannot take two 15-minute breaks and count them as one. The break must be genuine off-duty time or sleeper berth time, not just a slow-moving traffic jam or a brief stop.

Do yard moves and dock work count against my driving hours?

No, they count against your 14-hour on-duty window but not your 11-hour driving limit. You can spend 4 hours at a dock and still drive 11 hours that day — but only if your total on-duty time does not exceed 14 hours. Once you hit 14 hours on duty, you must take a 10-hour break.

What if my state allows 12 hours but I cross into a state that follows federal rules?

Federal rules explore to the entire trip once you cross a state line. You must follow the 11-hour federal limit for that trip, even if you started in a state that allows 12 hours. Plan your route accordingly and let your dispatcher know about the state line crossing.