Colorado Truck Accident Laws

The Federal Regulations That Govern Commercial Trucks

Inspection and maintenance. Carriers must systematically inspect, repair, and maintain their vehicles under federal maintenance rules.^[3] Brake failure or a tire blowout that traces back to skipped inspections points liability at the company, not just the driver.

Drug and alcohol testing. Commercial drivers are subject to mandatory testing and a stricter impairment threshold of 0.04 percent blood alcohol, half the limit that applies to other drivers.^[4]

Insurance minimums. Federal law requires most interstate freight carriers to hold at least $750,000 in liability coverage,^[5] far more than a private driver carries. That coverage is why carriers and their insurers dispute fault aggressively from day one, and it is also why identifying every responsible company matters.

Colorado Laws That Apply to Truck Accident Claims

Once fault is in play, Colorado law controls the claim itself.

Comparative fault. Colorado follows a modified comparative negligence rule.^[6] You can recover if your share of fault is less than 50 percent, reduced by your percentage. If you are found 50 percent or more at fault, you recover nothing. Truck insurers use this rule constantly, arguing the car driver was speeding, following too closely, or lingering in a blind spot, which is why how fault is investigated and argued directly changes what a claim is worth.

Damages. Colorado divides recovery into economic damages, which cover medical bills, future care, and lost income and are generally uncapped in an ordinary claim against a private carrier, and noneconomic damages for pain, suffering, and loss of enjoyment of life, which are capped at $1.5 million for claims that accrued on or after January 1, 2025.^[7] Wrongful-death, medical-malpractice, and certain government-liability claims follow separate limits.

Filing deadlines. A claim arising from the use or operation of a motor vehicle, including a truck crash, generally must be filed within three years.^[8] If a government entity may share fault, written notice is required within 182 days,^[9] a far shorter window. That deadline is a ceiling, not a schedule. The evidence that proves the claim can be gone long before the deadline arrives.

Who Is Liable for a Truck Accident Under Colorado Law

Liability in a tractor-trailer crash often extends well beyond the person behind the wheel. Depending on the facts, responsible parties can include:

• The truck driver, for speeding, distraction, fatigue, impairment, or unsafe maneuvers such as improper lane changes and wide turns.
• The motor carrier, both for its driver’s conduct on the job and for its own failures, such as negligent hiring, inadequate training, unrealistic delivery schedules that encourage hours-of-service violations, or pressuring drivers to skip rest.
• A maintenance provider, when brake failure, tire blowouts, or other mechanical problems trace back to skipped inspections or bad repair work.
• The shipper or cargo loader, when unbalanced or unsecured cargo causes a rollover, a jackknife, or a lost load.
• A parts or vehicle manufacturer, when a defective component contributed to the crash.
• A government entity, in limited cases involving dangerous road conditions, which triggers a strict 182-day written notice requirement that is far shorter than the standard filing deadline.

The type of crash often points to the type of failure. Jackknife and rollover crashes frequently involve speed, braking, or load problems. Underride crashes, where a car slides beneath the trailer, raise questions about lighting, reflective equipment, and guard compliance. Blind spot and wide-turn crashes point to driver training and mirror use. Rear-end crashes on Colorado’s mountain grades often trace back to brake condition and speed management. Each of these crash types has its own liability patterns under the same legal framework, including situations where the trucking company may be legally responsible for the collision.

What the Law Requires Trucking Companies to Record

Commercial trucks generate records that passenger vehicles do not, because federal law requires them, and those records usually decide the case.

Carriers must keep ELD driving logs, driver qualification files, post-crash drug and alcohol testing results, and inspection and maintenance records. The truck’s engine control module also records speed and braking in the seconds before a crash, and many trucks carry dashcams. But the law only requires carriers to keep some of these records for a limited time. ELD logs, for example, generally must be retained for just six months.^[2]

None of this evidence is in the injured person’s possession. It belongs to the carrier, and it can be lost, overwritten, or destroyed on routine retention schedules. One of the first steps we take is sending a preservation letter that puts the carrier on legal notice not to destroy evidence, then following up with formal discovery to obtain it.

Injuries and What the Law Lets You Recover

The physics of an 80,000-pound vehicle striking a 4,000-pound one mean truck crash injuries are often catastrophic: traumatic brain injuries, spinal cord damage and paralysis, amputations, severe burns from fuel fires, crush injuries, and internal organ damage. Because Colorado does not cap economic damages, fully documenting decades of future care, lost earning capacity, and long-term support is often the most important part of the claim.

When a crash is fatal, Colorado’s wrongful death laws allow certain family members to bring a claim. Both catastrophic injury and wrongful death claims demand the same thing in a truck case: documenting the complete, long-term cost rather than just the bills that have arrived so far.

How Elkus & Sisson Helps After a Truck Crash

Knowing the law is one thing. Using it against a carrier’s defense team is another. We approach every truck case with the preparation of a trial firm, whether it settles or goes to court.

• Immediate evidence preservation. Sending preservation letters to the carrier and every related company before ELD data, ECM data, and maintenance records disappear.
• Full investigation. Reconstructing the crash, obtaining federal safety records, and identifying every company in the chain of responsibility.
• Regulatory analysis. Reviewing hours-of-service, maintenance, and driver qualification compliance for violations that establish negligence.
• Damages valuation. Working with medical and vocational experts to document lifetime costs, not just current bills.
• Negotiation and litigation. Pursuing a fair settlement and preparing to try the case when a fair offer is not made.

An early, honest read on your case costs nothing and protects your options before the carrier’s insurer sets the terms.