The Trucking Company Can Legally Delete the Logs in Six Months. Your Deadline Is Three Years.
There is a timing problem at the center of nearly every commercial truck case, and most injured people never learn about it until it has already cost them.
Colorado gives you three years from the date of a motor vehicle collision to file suit. That feels like room to recover, finish treatment, and figure out what the injury is going to mean long term. Meanwhile, federal regulation requires the motor carrier to retain the electronic record of what its driver was doing before the crash for six months. Not three years. Six months.
Do the arithmetic. The data that shows whether the driver had been behind the wheel for eleven hours or fourteen, whether the truck was accelerating or braking at impact, and where it had been all day can be lawfully gone two and a half years before a complaint is ever filed. Nobody has done anything improper. The retention period simply ran.
What an ELD Actually Records
The federal electronic logging device mandate took full effect in December 2017, and most interstate commercial drivers required to keep records of duty status now do so electronically rather than on paper.
An ELD connects to the truck’s engine control module and captures information automatically rather than relying on the driver to write it down. It records driving time, engine hours, vehicle miles, and location at each change of duty status and at intervals while the vehicle is in motion. It logs when the engine started and stopped. Edits are possible, but any edit requires a stated reason and the original unedited record must remain preserved and retrievable.
That combination is what makes the data so valuable. It is contemporaneous, it is machine generated, and the audit trail makes after the fact cleanup detectable. Compared to a driver’s recollection or a carrier’s summary, it is close to objective.
The Six Month Rule
Under 49 CFR 395.8(k)(1), a motor carrier must retain records of duty status and the supporting documents behind them for six months from the date of receipt. The Federal Motor Carrier Safety Administration states the same period in its guidance on the ELD rule and adds that a backup copy must be kept on a device separate from where the original data is stored, also for six months.
Two details compound the problem. Six months is a floor rather than a ceiling, so some carriers keep data longer under internal policy, but you cannot count on that and you will not know until you ask. And the obligation rests on the motor carrier, not on the ELD vendor. If the carrier’s subscription lapses or the vendor changes its own retention policy, the data can disappear even where the carrier intended to keep it.
The driver’s own copy is far more limited. Only the most recent several days of duty status records travel in the cab. Everything before that lives with the carrier.
The Regulation Itself Is Worth Reading
The governing provision is 49 CFR 395.8, which sets out the driver’s record of duty status requirements, the ELD mandate that took effect in December 2017, and the retention obligations. It also contains a provision that matters in litigation: no driver or motor carrier may permit or require anyone to disable, disengage, block, degrade, or otherwise tamper with an ELD so that it fails to accurately record and retain required data.
That language is useful because it converts certain conduct from a records dispute into a regulatory violation. Where the data shows unexplained gaps, an unassigned driving segment, or a device that stopped recording during a critical period, the question is not merely what happened to the file. It is whether a rule prohibiting interference was broken.
Supporting Documents Are Part of the Story
Duty status records tell you what the driver reported. Supporting documents tell you whether it was true, and they follow the same six month retention period under the same regulation.
Bills of lading establish where a load originated and where it was going. Dispatch records show what the carrier instructed and when. Fuel receipts and toll records place the truck at specific locations at specific times. Payroll records show how the driver was compensated, which matters because pay structures tied to miles or delivery windows create pressure to run past legal limits. Where the reported logs and the supporting documents disagree, the disagreement itself is the evidence.
Some Records Last Considerably Longer
Not everything evaporates at six months. The driver qualification file must be maintained throughout employment and for three years after termination, which is a far more generous window. That file can carry the whole case in a negligent hiring or negligent retention theory, because it holds the employment application, the motor vehicle record, road test results, medical certification, and the annual review of driving performance.
Maintenance and inspection records, drug and alcohol testing records, and accident registers follow their own retention schedules as well. A preservation demand that asks only for the logs leaves a great deal of the file uncovered. Our page on FMCSA regulations in Colorado truck cases covers the categories that matter and why.
The Preservation Letter
The mechanism for stopping the clock is a spoliation letter, sent to the carrier and its insurer as soon as the crash is identified as involving a commercial vehicle. It puts the carrier on written notice that litigation is anticipated and identifies with specificity what must be preserved.
Specificity is the whole point. A demand to preserve all relevant evidence invites a narrow reading. A demand naming ELD data for a defined period, the backup copy required by regulation, supporting documents, dispatch communications, the engine control module and its download, telematics and any forward facing or in cab camera footage, the driver qualification file, maintenance and inspection records for the specific tractor and trailer, and post accident testing results is considerably harder to read narrowly.
The letter also matters because it converts later destruction into something other than routine records management. Once a carrier is on notice, the ordinary retention schedule stops being a defense.
What Happens When the Data Is Gone Anyway
Sometimes the letter goes out too late, and sometimes it goes out on time and the data disappears regardless. Courts have tools for this. Where a party had a duty to preserve electronically stored information and failed to take reasonable steps, and the information cannot be restored or replaced, a court can order measures to cure the prejudice. Where the failure was intended to deprive the other side of the evidence, sanctions can extend to an instruction permitting the jury to presume the lost information was unfavorable.
Those remedies are real, and they are considerably less valuable than simply having the records. A jury instruction about missing data is a poor substitute for a log showing the driver had been on duty for sixteen hours.
Why Carriers Move Faster Than You Do
Understand the asymmetry in the first hours after a serious truck crash. Many carriers and their insurers maintain rapid response protocols. Investigators and sometimes counsel are dispatched to significant scenes quickly, before the vehicles are moved, to photograph, measure, download modules, and interview witnesses while memories are fresh.
That is not misconduct. It is competent defense work, and it is happening while an injured person is still in an emergency department. The imbalance is not a reason for despair, but it is the reason that waiting to see how things develop is the single most expensive decision available in a commercial vehicle case.
What to Do in the First Days
Photograph the tractor and trailer, including the company name, the USDOT number, and any unit numbers, because the entity operating the truck is frequently not the entity whose name is painted on the door. Get the police report number and the responding agency. Note whether the truck carried visible camera equipment. Identify witnesses before they leave. Seek medical evaluation the same day and describe every symptom.
Then move on the records. The retention clock started running at the moment of impact and it does not pause for your recovery.
What the Data Tends to Show
It is worth understanding why carriers defend these records so hard. Hours of service limits exist because fatigue degrades reaction time and judgment in ways drivers consistently underestimate in themselves. When logs show a driver approaching or exceeding the daily driving limit at the time of a crash, the case changes character. It stops being an argument about a moment of inattention and becomes an argument about a system that put a fatigued driver on the road.
That shift matters because it opens claims against the company itself rather than only the driver. Negligent supervision, negligent retention, and negligent entrustment are separate theories, and they reach conduct like dispatching against a schedule that could not be met legally, ignoring a pattern of violations visible in the carrier’s own data, or keeping a driver whose record should have disqualified him. Those theories are built almost entirely from documents that exist for six months.
Talk to a Colorado Injury Lawyer
Rampart Injury Lawyers represents people injured by commercial vehicles in Castle Rock, Douglas County, and along the I-25 freight corridor from Greenwood Village to Colorado Springs. Todd Travis and Jordan Travis handle trucking cases where the outcome depends on what was preserved and how quickly the demand went out. If a commercial vehicle was involved in your crash, the records are already aging. Contact our office for a free consultation with an attorney.
