Trucking Company Liability After a Truck Accident in Colorado
After a serious truck crash, the driver is rarely the only responsible party, and almost never the one with the resources to cover the harm. The trucking company behind the driver can be liable in two distinct ways: for what its driver did on the road, and for what the company itself did before the truck ever left the yard. Colorado law allows injured people to pursue both at the same time, which is not true in every state.
Understanding trucking company liability matters for a practical reason. Motor carriers hold substantial insurance coverage, control the records that prove what went wrong, and make the business decisions, on hiring, scheduling, training, and maintenance, that determine whether their trucks are safe. This page explains how Colorado law reaches those decisions.
Vicarious Liability: When the Company Answers for Its Driver
The first path to company liability is vicarious liability, known in the law as respondeat superior. When a truck driver negligently causes a crash while acting in the course and scope of their employment, the motor carrier is generally responsible for that negligence. Hauling a load on the company’s route, on the company’s schedule, in the company’s truck is squarely within the course and scope of the job.
Vicarious liability does not require proving the company did anything wrong itself. If the driver was negligent and on the job, the company answers for it. That is why carriers rarely dispute the employment relationship and instead attack the underlying question of who caused the crash.
Colorado Lets You Pursue the Company’s Own Negligence Too
For years, trucking companies in Colorado used a pleading tactic to shield their own conduct: admit the driver was an employee, accept vicarious liability on paper, and argue that the admission barred any claim about the company’s hiring, training, or supervision practices. The Colorado Supreme Court endorsed that rule in 2017.
The Colorado legislature reversed it. Under C.R.S. § 13-21-111.5(1.5), when an employer acknowledges vicarious liability for its employee’s negligence, the injured person’s direct negligence claims against the employer are not barred, and the plaintiff may pursue those claims, and the discovery that comes with them, alongside the respondeat superior claim.[1] The statute applies to civil actions commenced on or after September 7, 2021, and it does not allow recovering damages twice for the same injury.
The practical effect is significant. Direct negligence claims, including negligent hiring, training, supervision, retention, and entrustment, open the company’s own conduct to discovery: its hiring files, training programs, safety policies, dispatch pressure, and maintenance history. Under the old rule, an admission could keep all of that out of the case. Under current Colorado law, it cannot.
Negligent Hiring
Federal law requires motor carriers to qualify their drivers before putting them behind the wheel. Under the driver qualification rules, carriers must verify a valid commercial driver’s license, obtain and review the driver’s driving record, maintain a driver qualification file, and confirm medical certification.[2]
A negligent hiring claim asks whether the company put an unfit driver on the road despite what it knew or should have known. A carrier that hires a driver with a history of preventable crashes, serious moving violations, or failed drug tests, or that skips the background checks the regulations require, has made a business decision that foreseeably endangered everyone sharing the road with its trucks.
Negligent Training
Qualifying a driver on paper is not the same as preparing one for the job. Training claims focus on what the company taught, or failed to teach, about the specific demands of the work: mountain grade braking, chain law compliance, cargo securement, winter operations, and fatigue management. In Colorado, where the I-70 corridor punishes inadequate training in ways flat-country routes do not, a carrier that sends an inexperienced driver over the mountain passes without grade-specific training invites exactly the crashes those lessons prevent.
Training records, or their absence, are discoverable in a direct negligence claim. A thin training file speaks for itself.
Negligent Supervision
Carriers are responsible for monitoring the drivers they employ. Federal hours-of-service rules cap driving time, and electronic logging devices give companies direct visibility into whether their drivers comply.[3] A carrier that sees violations and looks the other way, or worse, builds delivery schedules that cannot be met legally, is supervising negligently.
Supervision claims often reveal the difference between a company’s written safety policy and its actual practice. Dispatch records, driver communications, and ELD audit trails show whether safety rules were enforced or merely printed. The patterns repeat across these cases: delivery schedules that assume illegal driving time, logs edited after the fact, and warnings ignored until a crash forces the question. Fatigue violations rarely happen without the company’s knowledge.
Negligent Maintenance
Federal law requires carriers to systematically inspect, repair, and maintain every vehicle they operate, and to keep records proving they did.[4] Brake failure on a mountain grade, a tire blowout at highway speed, or steering or coupling failures are rarely acts of fate. They are usually the end of a paper trail: skipped inspections, deferred repairs, or out-of-service violations that were never corrected.
Maintenance liability can also extend beyond the carrier to an outside maintenance contractor, which is one reason identifying every responsible company early matters. The paper trail usually survives even when the part that failed does not.
How Company Liability Gets Proven
Every theory on this page is proven with records the law requires the company to keep: driver qualification files, training documentation, ELD data, dispatch records, drug and alcohol testing results,[5] and maintenance histories. The company holds all of it, and retention periods on some records are measured in months, not years.
That is why the first step in a company liability case is a preservation letter that puts the carrier on legal notice not to destroy evidence, followed by discovery aimed at the specific business decisions behind the crash. A claim built on the company’s own records is very difficult to argue with. How those records translate into a recovery, under Colorado’s filing deadlines, comparative fault rule, and damage caps, is explained on our Colorado truck accident laws page.
Frequently Asked Questions
Can I sue the trucking company if the driver caused the crash?
Generally yes, if the driver was working at the time. Under vicarious liability, the company answers for its driver’s on-the-job negligence. Colorado law also lets you pursue the company’s own failures, in hiring, training, supervision, or maintenance, at the same time, even if the company admits the driver was its employee.
The company admitted the driver worked for them. Does that limit my claim?
No. This is exactly the situation C.R.S. § 13-21-111.5(1.5) addresses. Before 2021, an admission of vicarious liability could bar claims about the company’s own conduct. Colorado law now says those direct negligence claims are not barred, and you may pursue them, with the discovery that comes with them, alongside the vicarious liability claim.
What if the truck driver was an independent contractor?
The label on the paperwork is not the end of the analysis. Whether a carrier can distance itself from a driver depends on factors like whose operating authority the truck ran under, who controlled the work, and the lease arrangement. Carriers generally cannot avoid responsibility simply by calling a driver a contractor, but this is a fact-specific question that deserves legal review rather than an assumption in either direction.
What records prove a trucking company was negligent?
Driver qualification files, driving record checks, training documentation, ELD driving logs, dispatch and scheduling records, drug and alcohol testing results, and inspection and maintenance records. Federal law requires carriers to create and keep these records, some for only a limited time, which is why preserving them early is one of the most consequential steps in the case.
Talk With a Colorado Truck Accident Lawyer
Trucking company liability is where these cases are usually won or lost. The driver’s conduct explains the crash; the company’s conduct explains why it happened and who has the coverage to answer for it.
Elkus & Sisson, PC is a Colorado trial firm that investigates the company behind the truck, from our offices in Greenwood Village, serving the Front Range, the I-70 mountain corridor, and the Denver metro area.
The consultation is free. The evidence clock is not. Talk with our atoorneys today!
Donald Sisson
Reid Elkus
[1] C.R.S. § 13-21-111.5(1.5) (Respondeat Superior; Direct Negligence Claims Not Barred; Added by HB 21-1188, Applicable to Actions Commenced on or After September 7, 2021) |
https://law.justia.com/codes/colorado/title-13/damages-and-limitations-on-actions/article-21/part-1/section-13-21-111-5/
[2] 49 CFR Part 391 (Qualifications of Drivers) |
https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-391
[3] 49 CFR Part 395 (Hours of Service of Drivers) |
https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-395
[4] 49 CFR Part 396 (Inspection, Repair, and Maintenance) |
https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-396
[5] 49 CFR Part 382 (Controlled Substances and Alcohol Use and Testing) |
https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-382
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If you or a loved one was injured in a crash with a semi-truck, 18-wheeler, or tractor-trailer anywhere in Colorado, contact Elkus & Sisson, P.C., today. Call +1 303-567-7981 or reach out online to schedule a free consultation. Our Colorado truck accident attorneys will evaluate what happened, pursue every theory of liability the facts support, and act quickly to preserve the hiring, training, and maintenance records that decide these cases.



