How Do Truck Logbooks Prove Driver Fatigue?

Short answer: Federal hours-of-service rules in 49 CFR Part 395 limit how long a property-carrying truck driver can drive and stay on duty. The driver’s record of duty status, usually kept on an electronic logging device, is the official record of those hours. After a crash, that record can show whether the driver was over the legal limits, whether required rest was skipped, and whether the log matches the rest of the evidence. On November 12, 2026, the U.S. Department of Transportation announced that the Federal Motor Carrier Safety Administration had removed 133 electronic logging devices from its registered list, which DOT described as the largest ELD revocation in FMCSA history. DOT said some of those devices were used to cheat rest-period rules, and it tied their use to deadly crashes. DOT did not publish crash-level data with that announcement, so that last point is the agency’s claim, not a fact we can independently verify here. If a truck that hit you was running a revoked or unreliable device, the logs may be incomplete, altered, or missing. That is evidence too, and it has to be preserved fast.

We handle the civil side of truck crash cases for injured people and families. We don’t do criminal defense.

What DOT and FMCSA announced on November 12, 2026

According to a November 12, 2026, U.S. Department of Transportation announcement, FMCSA pulled 133 electronic logging devices from its Registered Devices List. DOT said 121 were revoked by the agency and 12 were withdrawn by their providers. DOT called it the largest ELD revocation in FMCSA history.

The announcement said the crackdown targeted devices used “to cheat safety rules, bypass mandated rest periods, and undercut trucker wages.” It also said, in DOT’s words, that “[t]he use of these illegal logging devices can be directly sourced to deadly crashes across America.” The release did not identify those crashes, name the carriers, or attach crash data. FreightWaves similarly reported that FMCSA did not disclose details connecting individual devices to specific crashes. We are repeating DOT’s statement, not treating it as proven in a particular case.

DOT described three anonymized examples from its investigations. According to the announcement:

• One provider allowed carriers to call a support line and manually wipe out driving time and fabricate rest periods while the driver was still driving.
• Another was, in DOT’s words, “caught actively uploading fake logs during an active roadside inspection to cover up an overworked driver operating hours beyond the legal limit.”
• A third provider’s logs showed travel at “mathematically impossible speeds of up to 130 miles per hour” to compress driving time.

Those are DOT’s characterizations of investigations, with the companies anonymized. They are not findings in a Missouri lawsuit.

DOT also said motor carriers have up to 60 days to replace a revoked device with a compliant ELD from FMCSA’s registered list. The same announcement tells safety officials that if they encounter a driver using one of the revoked devices on or after November 24, 2026, they should cite 49 CFR 395.8(a)(1) and place the driver out of service under the Commercial Vehicle Safety Alliance out-of-service criteria. After the replacement period, DOT said, a carrier still using a revoked device will be treated as operating without an ELD. Those two timelines are both in the same release. November 24 is 12 days after the November 12 announcement, not 60 days. The release does not explain the difference.

If a provider fixes the problems FMCSA identified, the agency said it can put the device back on the registered list. The current lists are at FMCSA’s ELD site. The revoked-device list is at eld.fmcsa.dot.gov/List/Revoked. A device on the registered list has been self-certified by its provider. That is not the same thing as an FMCSA endorsement.

This is different from a change in the hours-of-service limits themselves. The core driving and on-duty limits in 49 CFR 395.3 are still the rules described below. What changed here is which devices FMCSA will treat as a lawful way to record those hours.

The hours-of-service rules the logs are supposed to prove

For property-carrying commercial motor vehicles, 49 CFR 395.3 sets the main limits. In plain terms, and except as other provisions in 395.1 allow:

• A driver may not drive without first taking 10 consecutive hours off duty.
• A driver may not drive after 14 consecutive hours from when the driver came on duty after those 10 hours off.
• During that 14-hour window, a driver may drive a total of 11 hours.
• Except for certain short-haul exceptions, a driver may not keep driving if more than 8 hours of driving have passed without a consecutive 30-minute interruption in driving status. That interruption can be off-duty, sleeper berth, on-duty not driving, or a combination of those.
• A driver may not drive after 60 hours on duty in 7 consecutive days, or after 70 hours on duty in 8 consecutive days, depending on whether the carrier operates every day of the week.
• A period of 7 or 8 consecutive days may end with an off-duty period of 34 or more consecutive hours, which resets that weekly clock.

Passenger-carrying vehicles have different limits under 49 CFR 395.5. This post is about property-carrying trucks, the tractor-trailers you meet on Missouri interstates.

These federal rules apply to commercial motor vehicles in interstate commerce. If the haul was purely in-state, the exact rule set should be checked against the facts.

What a logbook or ELD actually records

Under 49 CFR 395.8(a), a motor carrier subject to Part 395 generally must require each driver to record a duty status for every 24-hour period. For most carriers, that record has to be kept on an ELD. There are limited exceptions, including some short-haul operations, certain driveaway-towaway work, and older vehicles, where a paper or manual grid is still allowed.

The duty status has to be recorded as off duty, sleeper berth, driving, or on-duty not driving. 49 CFR 395.8(e)(1) also says no driver or motor carrier may make a false report in connection with a duty status. The same section bars disabling, jamming, reprogramming, or otherwise tampering with an ELD so it does not accurately record and retain required data, and it bars requiring or permitting someone else to do that.

49 CFR 395.22(a) requires a motor carrier that must use an ELD to use only a device listed on FMCSA’s registered ELDs list. 395.8(k) requires the carrier to keep records of duty status and supporting documents for at least 6 months from the date of receipt. 395.22(i) separately requires the carrier to keep a 6-month backup copy of the ELD records on a device other than the one holding the original data. Drivers also have to keep a copy of the last 7 days of logs with them while on duty.

That’s the paper trail. In a fatigue case, we compare it with everything else: the bill of lading and dispatch records, GPS and other telematics data, fuel receipts, tolls, scale tickets, dash or cab cameras, the engine control module, phone records, and what the driver and witnesses say about the hours leading up to the crash. If the log says the driver was in a sleeper berth, and the truck’s location data says it was still moving, that gap matters.

A log that shows a violation doesn’t automatically prove the crash was caused by fatigue. A clean-looking log doesn’t automatically prove the driver was rested. The question is whether the record, tested against the rest of the evidence, shows the driver was over the limit, short on rest, or running on a record that can’t be trusted.

Paper logbooks vs. electronic logs

Paper logbooks still show up. Some short-haul operations, certain driveaway-towaway work, and older vehicles can still use a paper or manual grid instead of an ELD. The categories are the same: off duty, sleeper berth, driving, or on-duty not driving. A paper log is easier to fake and easier to “lose.” An electronic log is harder to fake, but as the November 2026 revocations show, it is not impossible. Either way, we compare the log with the rest of the trip evidence.

Why a revoked ELD matters after a crash

If the truck that hit you was using a device later pulled from FMCSA’s registry, that fact belongs in the case file. It may support a request for the original data, a deeper look at whether hours were edited or fabricated, and questions about what the carrier knew. Under 395.22(a), a carrier required to use an ELD is supposed to use a registered device. DOT has said that after the replacement period, a carrier still using a revoked unit will be treated as operating without an ELD, and that inspectors should cite 395.8(a)(1) in that situation.

It does not, by itself, prove this driver was fatigued, or that this carrier cheated, or that the device caused this crash. Those are facts that have to be proved in the particular case. A revoked device is a reason to get the records immediately and to treat the logs with skepticism until they can be tested.

That’s especially important on Missouri’s truck corridors. I-70, I-44, and I-55 carry heavy through traffic across the state, including through the St. Louis and Columbia areas. A long-haul driver can be deep into a 14-hour window by the time that truck is in Missouri. If you were hurt in a semi crash, see our St. Louis truck accident and Columbia truck accident pages, and our statewide Missouri truck accident page. Our post on distracted truck drivers and ELD or cab-camera evidence covers phones, tablets, and what else may be in the cab. Our post on proving drowsy driving walks through fatigue proof more generally.

What to preserve after a truck crash

ELD data and supporting documents don’t sit around forever. Carriers are required to keep duty-status records and a backup for 6 months, not forever. Other electronic data can cycle off a truck even sooner.

• Get medical care and document the crash with the police.
• Identify the trucking company, the truck and trailer numbers, and, if you can do it safely, the USDOT number.
• Do not agree to a quick recorded statement before you understand the claim.
• A lawyer can send a preservation letter to the carrier and its insurer covering the ELD or paper logs, the last 7 days of duty status plus the days around the trip, supporting documents, GPS and engine data, cameras, dispatch communications, and the identity and model of the logging device.
• Check the device against FMCSA’s registered and revoked lists. The model and ELD identifier matter.

How long do you have to file?

Most Missouri personal injury claims must be filed within five years under RSMo 516.120. Wrongful death claims generally have a three-year deadline under RSMo 537.100. Exceptions exist, so get advice about your specific case. The evidence deadline is often shorter than the filing deadline, because the logs and electronic data may be gone in months, not years.

Frequently asked questions

How do truck logbooks prove driver fatigue?

They are the official record of when the driver was driving, on duty, off duty, or in the sleeper berth. Compared with GPS, fuel stops, dispatch records, cameras, and the truck’s electronic data, the log can show a driver was over the 11-hour driving limit or the 14-hour window in 49 CFR 395.3, had not taken the required 10 hours off, skipped a required 30-minute interruption, or was over the 60- or 70-hour weekly limit. A false or incomplete log can also be evidence, under 49 CFR 395.8(e), that the record was not kept honestly. The log is evidence. It is not, standing alone, a verdict on fatigue or fault.

What did FMCSA do with 133 electronic logging devices in November 2026?

According to DOT’s November 12, 2026, announcement, FMCSA removed 133 ELDs from its registered list, 121 revoked by the agency and 12 withdrawn by their makers. DOT said the devices were used to cheat safety rules and bypass required rest, and it tied their use to deadly crashes. The announcement did not include specific crash data. Carriers were told to replace revoked devices, and officials were told that a driver still using one on or after November 24, 2026, should be cited under 49 CFR 395.8(a)(1) and placed out of service. Check a specific unit on FMCSA’s revoked-device list.

What are the current hours-of-service limits for truck drivers?

For property-carrying commercial motor vehicles, 49 CFR 395.3 generally requires 10 consecutive hours off duty before driving, no driving after the 14th consecutive hour on duty, a maximum of 11 hours of driving in that window, a 30-minute interruption after 8 hours of driving (with short-haul exceptions), and a weekly cap of 60 hours in 7 days or 70 hours in 8 days, which can be reset by 34 consecutive hours off duty. Exceptions in 49 CFR 395.1 can change the analysis in a particular case.

What’s the difference between a paper logbook and an ELD?

Both are supposed to show the driver’s duty status: off duty, sleeper berth, driving, or on-duty not driving. An ELD records that data automatically. A paper logbook, which is still allowed in limited situations, is filled out by hand. We treat either one as a starting point, then test it against GPS, fuel receipts, dispatch records, and the other trip documents.

How can I tell if the truck used a revoked ELD?

You usually can’t tell from the crash scene. The device model and ELD identifier are in the records we request from the trucking company. We check those against FMCSA’s registered list and the revoked list. That is one more reason to preserve the data early, before the device is swapped out or the files cycle off.

How long does a trucking company have to keep ELD records?

Under 49 CFR 395.8(k), a motor carrier must keep records of duty status and supporting documents for at least 6 months from the date of receipt. Under 49 CFR 395.22(i), the carrier must also keep a 6-month backup of the ELD records on a separate device. Drivers must have the prior 7 consecutive days of logs with them while on duty. That is a retention minimum, not a reason to wait.

Can the trucking company be responsible if the driver used a revoked ELD?

Possibly, depending on the facts. A carrier required to use an ELD must use a device on FMCSA’s registered list, under 49 CFR 395.22(a). If the carrier was using a revoked or non-registered device, or if the logs were false or altered, that can be part of a civil claim against the carrier as well as the driver. It does not automatically establish that the device, or fatigue, caused the crash. The rest of the evidence still has to be developed.

What if the ELD data is missing or looks altered after a Missouri truck crash?

Missing, late, or altered logs are often as important as a clean violation on the face of the record. 49 CFR 395.8(e) prohibits false duty-status reports and ELD tampering. A preservation letter should go out quickly, and the log should be compared with independent data such as GPS, fuel, tolls, cameras, and the engine module. A gap in the record is a reason to dig, not a reason to assume there’s nothing to find.

How long do I have to file a truck accident claim in Missouri?

Most personal injury claims must be filed within five years under RSMo 516.120. Wrongful death claims generally have a three-year deadline under RSMo 537.100. Start sooner if you can. The logging data may only have to be kept for 6 months.

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At Mutrux Firm Injury Lawyers, our results speak through the voices of our clients and now, through the honors we’ve earned in the community. Tyson Mutrux is licensed to practice in Missouri, Illinois, and U.S. Federal Courts. He takes every case seriously, representing individuals in serious injury claims with precision and care.

A lawyer’s reputation speaks volumes about their ability to handle cases effectively. Whether you need legal representation for a personal injury claim, a car accident, a motorcycle accident, a truck or tow-truck accident, a pedestrian accident, a catastrophic injury, or a wrongful death, choosing an attorney with a proven track record is essential.

Before Tyson Mutrux became a personal injury lawyer, he served in the U.S. Army as a Non-Commissioned Officer. He graduated with distinction from the Non-Commissioned Officers Academy and received the Army Commendation Medal for exceptional service.

The military taught him discipline, precision, and the importance of planning three moves ahead. Those same principles guide his approach to every case today.

Over the years, he has earned notable recognition, including:

• Selected for Super Lawyers (2024 – 2026).
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• Top 10 Car Accident Lawyers in Columbia, Trust Analytica (2024).
• The Nation’s Top One Percent of Attorneys, National Association of Distinguished Counsel (2015).
• Top 100 and Top 40 Under 40, The National Trial Lawyers (2014).
• Superb (10/10) Rating, Avvo (2012).
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Hurt by a Fatigued Truck Driver? Act Before the Evidence Disappears

Logbooks, electronic logging device (ELD) data, and hours-of-service records are some of the most powerful evidence in a truck accident case, and trucking companies are only required to keep much of it for about six months. Once it is overwritten, the proof of a drowsy driver can be gone for good. Mutrux Firm Injury Lawyers moves quickly to send preservation letters and lock down those records before that happens, then builds your case around what they show. We offer a free case investigation, and you pay nothing unless we win. Contact us or call (888) 550-4026 today.