Utah Truck Accident Laws: Deadlines, Fault Rules & Your Rights

Utah truck accident laws give most injured people four years to file a personal injury lawsuit, and they follow a modified comparative fault rule that cuts off compensation if you are found 50% or more at fault for the crash. Understanding how these two rules work together, alongside federal trucking regulations, matters a lot when a commercial truck is involved because these cases are usually more complicated than an ordinary car wreck.

Key takeaways

• Utah's general personal injury statute of limitations is 4 years from the date of the crash, but some claims have shorter deadlines.
• Utah uses modified comparative fault with a 50% bar — if you're 50% or more at fault, you recover nothing.
• Federal FMCSA rules on hours of service, insurance minimums, and inspections apply on top of Utah law.
• Multiple parties besides the driver — carriers, shippers, maintenance companies, even brokers — can sometimes share liability.
• Key evidence like ELD logs and event data recorder data can disappear quickly, so early action matters.

What is the deadline to file a truck accident claim in Utah?

In most cases, Utah law gives injured people four years from the date of the crash to file a personal injury lawsuit. This is called a statute of limitations — a legal deadline after which a court can refuse to hear your case at all, no matter how strong the evidence is.

Four years is on the longer side compared to many states, but that does not mean there is no rush. Evidence fades, memories get fuzzy, and trucking companies are only required to keep certain records, like electronic logging device (ELD) data, for six months under federal rules. Waiting even a few months can mean losing access to proof that would have supported your claim.

There are important exceptions. Claims against a government agency — for example, if a Utah Department of Transportation vehicle or a city-owned truck was involved — generally carry much shorter notice deadlines, sometimes just a matter of months. Wrongful death claims after a fatal truck crash can also run on a different timeline than a standard injury claim. Because these exceptions are common and vary by situation, it's worth checking your specific circumstances with the statute of limitations calculator or the 50-state deadlines and fault rules table, and confirming with a licensed Utah attorney.

How does Utah's fault rule affect a truck accident claim?

Utah follows a modified comparative fault rule with a 50% bar, meaning you can still recover compensation if you were partly responsible for the crash, but only if your share of fault is less than 50%. If you are found 50% or more at fault, Utah law bars you from recovering anything.

When you are below that 50% threshold, your compensation is reduced by your percentage of fault. Here's a simple example to show how this works:

• Suppose a jury finds your total damages are $200,000.
• If you are found 20% at fault (for example, for speeding slightly) and the truck driver is 80% at fault, you could recover 80% of $200,000, or $160,000.
• If you are found 50% at fault, you would recover nothing under Utah's bar rule.

Insurance companies for trucking companies often try to shift as much fault onto the injured driver as possible, precisely because crossing that 50% line eliminates the claim entirely. This makes it important to push back on unfair fault allocations early, often with the help of crash reconstruction and the kind of evidence discussed below. The truck accident settlement calculator and pain and suffering calculator can help you get a rough educational sense of how fault percentages might affect a claim's value, though they are not a substitute for legal advice.

How do federal trucking rules apply in Utah?

Federal regulations from the Federal Motor Carrier Safety Administration (FMCSA) apply to interstate trucking companies operating in Utah on top of state traffic and injury law. These federal rules set safety standards that state law doesn't always address, and violating them can be strong evidence of negligence in a Utah truck accident case.

Some of the most relevant federal rules include:

• Hours of service: Property-carrying truck drivers generally cannot drive more than 11 hours after 10 consecutive hours off duty, cannot drive after the 14th hour on duty, must take a 30-minute break after 8 cumulative hours of driving, and are capped at 60 hours in 7 days or 70 hours in 8 days (with a 34-hour restart available). Adverse driving conditions can extend the 11- and 14-hour limits by up to 2 hours. See FMCSA's hours-of-service rules.
• Minimum liability insurance: Interstate for-hire carriers must generally carry at least $750,000 in liability insurance for general freight, $1,000,000 for certain oil and other materials, and up to $5,000,000 for certain hazardous materials, under 49 CFR Part 387.
• Record retention: Carriers must generally keep records of duty status (ELD logs) for six months, which is why requesting preservation of these records quickly after a crash matters.
• Conduct rules: Commercial drivers are prohibited from texting or using a hand-held phone while driving, and the blood alcohol limit for CDL holders operating a commercial vehicle is 0.04%, half the standard limit for other drivers.

A truck driver or carrier who violated one of these federal rules at the time of a Utah crash may be considered negligent as a matter of law in some situations, which can simplify proving fault. You can check hours-of-service math using the DOT hours of service calculator.

Who can be held responsible for a Utah truck accident?

More than one party can share legal responsibility for a truck crash, and identifying all of them often increases the total compensation available. Common parties include:

• The truck driver, if they were speeding, fatigued, distracted, or driving under the influence.
• The motor carrier (the trucking company), which can be liable for the driver's actions and for its own negligence in hiring, training, or supervising drivers. See Suing a Trucking Company: What You Need to Know.
• A shipper or loader, if improperly loaded or secured cargo caused the truck to become unstable or shift.
• A maintenance or repair company, if faulty brake work, tire service, or other repairs contributed to the crash.
• A parts or vehicle manufacturer, if a defective component like brakes, tires, or coupling equipment failed.
• A freight broker, in some cases, if it negligently selected an unsafe carrier.

For a deeper look at how fault is divided among these parties, see Who Is Liable in a Truck Accident? A Clear Guide to Fault.

Where does heavy truck traffic travel in Utah?

Several major corridors carry heavy commercial truck traffic through Utah, and crashes tend to cluster along these routes. Interstate 15 runs the length of the state from the Arizona border through St. George, Salt Lake City, and Ogden up to Idaho, and is one of the busiest freight corridors in the Mountain West. Interstate 80 crosses Utah east-west through Salt Lake City, connecting to Wyoming and Nevada and carrying significant long-haul truck traffic, especially around the Salt Lake City metro area and through the Wasatch mountain passes. Interstate 84 is another important freight route through northern Utah. Because these interstates see a steady mix of local traffic and interstate commercial carriers, crashes involving semi-trucks are an ongoing safety concern on these roads.

What evidence matters most in a Utah truck accident case?

The evidence that makes or breaks a truck accident claim often exists only in a narrow window after the crash, so preserving it quickly is critical. Key sources include:

• ELD and paper logbook data, which show whether the driver violated hours-of-service limits.
• The event data recorder (EDR), sometimes called a "black box," which can capture speed, braking, and throttle data in the seconds before a crash.
• Maintenance and inspection records, which can reveal whether known mechanical problems went unaddressed.
• The driver qualification file, which shows the driver's licensing, training, and past safety history.
• Dashcam or nearby surveillance footage, if available.

Trucking companies are not always required to hold onto this information indefinitely, and some records can be routinely overwritten or deleted. A formal written request — sometimes backed by a legal hold letter — is often needed to make sure evidence isn't lost. A discovery process later in a lawsuit can compel production of records, but by then some data may already be gone if it wasn't preserved early.

What should you do after a truck accident in Utah?

Taking a few practical steps in the hours and days after a crash can protect both your health and your legal options.

1. Get medical attention, even if injuries seem minor at first — some, like internal injuries or concussions, aren't obvious right away.
2. Call law enforcement to the scene and make sure an official crash report is filed. See How to File a Truck Accident Report for what this involves.
3. Document the scene with photos of vehicle positions, damage, skid marks, road conditions, and the truck's company name and DOT number.
4. Get witness contact information before people leave the scene.
5. Avoid giving a recorded statement to the trucking company's insurance adjuster until you understand your rights.
6. Keep records of medical bills, missed work, and property damage.
7. Consider consulting a licensed Utah truck accident attorney early, especially given how quickly key evidence can disappear.

For more on what typically happens on the trucking company's side after a crash, see What Happens When a Truck Driver Has an Accident? and Can a Truck Driver Be Fired for an Accident?

What compensation is available after a Utah truck accident?

Compensation in a Utah truck accident claim, often called damages, generally falls into a few categories. Economic damages cover measurable financial losses like medical bills, future medical care, lost wages, and reduced earning capacity. Non-economic damages cover harder-to-measure losses like pain and suffering, emotional distress, and loss of enjoyment of life. In rare cases involving especially reckless conduct, punitive damages may be available to punish the wrongdoer, though these are not awarded in every case. For a fuller explanation, see What Are Damages in Truck Accident Cases? A Full Breakdown.

No website can tell you what a specific case is worth — that depends on the severity of injuries, available insurance coverage, degree of fault, and many other factors specific to your situation. The truck accident settlement calculator offers an educational estimate based on factors you enter, not a promise of any outcome.

Finding and evaluating a Utah truck accident lawyer

If you decide to work with an attorney, look for one who regularly handles commercial truck cases specifically, not just general car accident claims, since trucking cases involve federal regulations and corporate defendants that add complexity. Ask about their experience with FMCSA regulations, how they handle evidence preservation, and how they communicate throughout a case. What to Ask a Truck Accident Lawyer Before You Hire One offers a useful list of questions. Most truck accident attorneys work on a contingency fee basis, commonly around 33% to 40% of any recovery, though the exact percentage varies by firm and case — see How Much Does a Truck Accident Lawyer Cost in 2026? for more detail. To understand what a lawyer actually does day-to-day on a case, see What Does a Truck Accident Lawyer Do? A Clear Breakdown, and for how the legal process itself unfolds, see How Do Truck Accident Lawsuits Work? A Step-by-Step Guide.

Sources

• FMCSA — Hours of Service Regulations
• eCFR — 49 CFR Part 387, Minimum Levels of Financial Responsibility for Motor Carriers
• Utah State Legislature