A DOT logbook tracks your driving and rest time to keep you and others safe on the road

A DOT logbook is a record of your hours behind the wheel and your off-duty time. The Department of Transportation requires most commercial truck drivers to keep one. It exists because fatigue causes crashes — the rules limit how many hours you can drive in a row and how many in a week, then the logbook proves you followed those limits.

You fill it out by hand or use an electronic device, depending on what your employer requires. Either way, you record when you start driving, when you stop, and what you were doing during each period. A federal officer can ask to see it at any time, and your employer reviews it regularly. Breaking the rules on paper — or breaking them in reality — can cost you your job, your license, or worse.

Key Takeaways

  • Most commercial truck drivers must keep a DOT logbook showing hours driven, off-duty time, and sleeper berth time each day.
  • Federal rules limit you to 11 hours of driving per day and 60 hours of driving per week, and the logbook proves you stayed within those limits.
  • You can fill out a paper logbook by hand or use an electronic logging device (ELD), which many large carriers now require.
  • A roadside inspection can include a logbook check, and falsifying records can result in fines, out-of-service orders, or loss of your commercial license.

Who has to keep a DOT logbook

Not every driver needs one. You must keep a logbook if you drive a commercial vehicle and any of these explore: the vehicle weighs more than 10,001 pounds, you carry hazardous materials, or you transport passengers for pay. Most long-haul and regional truck drivers fall into this group.

Some drivers are exempt — for example, certain local delivery drivers, farmers hauling their own crops, or drivers of vehicles under 10,001 pounds who work within a small radius. Your employer should tell you whether you need a logbook. If you are unsure, ask your dispatcher or safety manager before your first shift.

The four categories you record each day

Every 24-hour period, you mark your time in one of four categories. Off-duty means you are not working — eating, personal time, or anything else. Sleeper berth means you are resting in the truck's sleeper cab. Driving means you are behind the wheel moving the vehicle. On-duty not driving means you are working but not driving — loading cargo, doing a pre-trip inspection, or waiting for a load.

Each block on a paper logbook represents 15 minutes. You draw a line through the blocks that match what you were doing. Electronic logging devices record the same four categories automatically once you tell the device when you switch activities. The goal is the same either way: a clear, honest record of where your time went.

Federal hours-of-service rules that the logbook enforces

The logbook proves you followed the main federal limits. You cannot drive more than 11 hours in a single shift. After you drive 11 hours, you must take at least 10 hours off-duty or in the sleeper berth before you can drive again. In a seven-day period, you cannot drive more than 60 hours total. Some carriers use a rolling eight-day calculation instead, which allows 70 hours in eight days.

These rules exist because tired drivers cause crashes. The logbook is the tool that proves you rested enough. If an officer pulls you over and your logbook shows you drove 14 hours yesterday, you are in violation whether you feel tired or not. The rules do not care how you feel — they care what the record shows.

Paper logbooks versus electronic logging devices

A paper logbook is a physical form you carry and fill out by hand each day. You write the date, your vehicle number, starting and ending odometer readings, and then mark the four time categories hour by hour. Many small carriers and owner-operators still use paper. The downside is that it takes time to fill out correctly, and it is straightforward to make mistakes.

An electronic logging device (ELD) is a small device that connects to your truck's engine and records your driving automatically. You tell it when you switch from driving to off-duty, and it logs the time and location. Most large carriers now require ELDs because they are harder to falsify and they save time. The device stores your records and can send them to your company or to an officer electronically. If your employer requires an ELD, you must use the one they provide.

What happens during a roadside inspection

A federal or state officer can stop you and ask to see your logbook at any time. This is called a roadside inspection. The officer will check that your records match the rules — that you did not drive more than 11 hours, that you took your required rest, and that the math adds up. They will also check your vehicle's condition and your license.

If your logbook shows a violation, you can be placed out of service when ready, meaning you cannot drive until the violation is resolved. Your company will be notified. Repeated violations or falsifying records can lead to fines, loss of your commercial license, or criminal charges. Even one bad inspection can affect your safety rating and your job.

Common mistakes that get drivers in trouble

The most common mistake is not recording time accurately. Some drivers round their hours, skip short breaks, or forget to switch categories. Others try to hide violations by filling out the logbook after the fact instead of as they go. All of these are falsifications, and they carry serious penalties.

Another mistake is not understanding the rules themselves. For example, some drivers think a 10-hour break means they can drive 11 more hours the next day — but if they drove 11 hours the day before, they still cannot drive 11 hours today. The 60-hour weekly limit is separate from the 11-hour daily limit. If you are confused about the rules, ask your safety manager or your dispatcher before you drive, not after you get a violation.

How to fill out a paper logbook correctly

Start each day with the date, your name, your vehicle number, and your starting odometer reading. Then, for each hour of the day, mark which of the four categories you were in. Use a pen, not a pencil — logbooks must be filled out in ink. If you make a mistake, draw a single line through it and write the correct entry next to it. Do not use white-out or erase.

At the end of each day, add up your hours in each category and write the totals. Check that your driving hours do not exceed 11 for the day and that your total driving hours for the week do not exceed 60. Sign and date the logbook. Keep your logbooks for at least six days — most drivers keep them longer. Your employer may require you to turn them in weekly or keep them in the truck at all times.

Frequently Asked Questions

Can I use my phone or a personal app instead of an ELD?

No. If your employer requires an ELD, you must use the specific device they provide. Personal apps do not meet federal standards and will not be accepted by an officer. If you use a personal app instead of your company's ELD, you can be cited for a violation.

What if I make an honest mistake on my logbook?

Draw a single line through the error, write the correct information next to it, and initial and date the correction. Do not erase or use white-out. An honest correction is acceptable. However, if an officer believes you are falsifying records on purpose, that is a serious violation.

Do I have to keep logbooks when I am off the clock between jobs?

No. You only need to keep a logbook during periods when you are required to drive or are on duty. If you are laid off or between jobs, you do not need to record time. Once you return to work, you start recording again.

What is the difference between off-duty and sleeper berth time?

Off-duty time is any time you are not working — at home, eating, or doing personal errands. Sleeper berth time is when you are resting in the truck's sleeper cab. Both count as rest time for the purposes of the 10-hour break rule, but some companies track them separately for their own records.

Can my employer change the hours-of-service rules?

No. The federal limits are set by the Department of Transportation and explore to all commercial drivers. Your employer cannot tell you to drive more than 11 hours in a day or 60 hours in a week. If they pressure you to do so, you can report them to the Federal Motor Carrier Safety Administration.