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Call For A Free Consultation(602) 345-1818
By Jared J. Pehrson | Impact Legal Car Accident Attorneys. Updated March 2026.
A commercial truck crash is not a bigger car accident. The trucking company’s insurer, investigators, and defense counsel are on the road to the wreck within hours. Evidence (electronic logs, dashcam footage, driver qualification files) can be overwritten or “lost” within days. If you were hurt by a semi, box truck, dump truck, tanker, or 18-wheeler in Phoenix, AZ, you need to know what to do now, what Arizona law actually says, and what federal regulations apply to the company that hit you.
This page walks through all of it. If you want a direct answer about your situation, call us for a free case review at (602) 345-1818. Our team handles truck cases personally. You will talk to a lawyer, not a call center.
The first 72 hours matter more in a truck case than in almost any other type of crash. Here is the short version.
Kinetic energy scales with mass. A fully loaded tractor-trailer runs at the federal weight limit of 80,000 pounds; a typical passenger car falls in the 3,500 to 4,500 pound range. At equal speeds, that is roughly a 17-to-22x mass differential, and the energy delivered in a collision reflects it. That mass gap is why truck crashes produce catastrophic injuries and why the claims process is different in every meaningful way.
Truck cases also involve a layer of federal law that simply does not apply to passenger car wrecks. The Federal Motor Carrier Safety Administration (FMCSA) regulates interstate trucking under Title 49 of the Code of Federal Regulations. Those rules govern driver hours, equipment, inspections, drug testing, hiring practices, and minimum insurance. When a trucking company violates one of those rules and someone gets hurt, the violation often becomes the core of the liability case.
Large-truck crashes are a persistent problem on Arizona’s freeway system. The FMCSA’s Motor Carrier Management Information System tracks these crashes nationwide, and the Arizona Department of Transportation reports commercial vehicle collisions annually as part of its Crash Facts publication. Maricopa County, which includes Phoenix, consistently accounts for a large share of statewide truck crashes because it sits at the intersection of I-10 (a major cross-country freight corridor), I-17, and the Loop 101 and 202 systems.
The number that matters for your claim is not the statewide total. It is that truck crashes in Maricopa County are common enough that the defense bar has a well-developed playbook. Rapid-response investigators, defense counsel, and reconstruction experts move on these cases quickly. You need someone on your side who understands how they work.
Federal oversight of commercial trucking continues to evolve. The FMCSA’s Drug and Alcohol Clearinghouse, which launched in 2020, has expanded in scope: under the Clearinghouse-II rule (compliance date November 18, 2024), state driver licensing agencies must query the Clearinghouse before issuing, renewing, transferring, or upgrading a commercial driver’s license, so a prohibited driver should no longer be able to keep operating simply because their home state was slow to check. That matters for injury cases, because a driver whose record should have flagged them out of a cab, but did not, can be direct evidence for a negligent hiring or retention claim against the carrier.
Arizona DPS also continues commercial vehicle enforcement along I-10 and I-17, and inspection data from those stops (weigh-station reports, roadside inspection reports, out-of-service orders) is discoverable and can show a pattern of noncompliance by a specific carrier.
Some corridors produce a disproportionate share of commercial truck crashes in the Valley:
Where the crash happened matters. Different jurisdictions, different responding agencies, and sometimes different government entities maintain those roadways. That affects evidence, witnesses, and in some cases the statute of limitations (more on that below).
Federal rules are not background information. They are often the case.
When the trucking company violated a federal regulation and that violation caused the crash, Arizona courts can allow the violation to be introduced as evidence of negligence.
Not every commercial truck sits in the same regulatory category. A few specialty categories carry additional exposure:
Each specialty category adds regulations, and each set of regulations is another potential source of liability evidence.
Here is what we send preservation demands for within days of being hired:
A spoliation letter does two things. It forces the carrier to stop the routine destruction cycles on this data. And if the data later turns out to be “lost” anyway, it opens the door to an adverse inference argument at trial: the jury can be asked to assume the missing evidence would have been unfavorable to the trucking company.
Under Arizona law, anyone whose negligence contributed to the crash can be a defendant. Truck cases almost always involve more than one defendant.
The doctrine of respondeat superior allows an employer to be held liable for the negligent acts of an employee committed within the scope of employment. When a company driver causes a crash while performing job duties for the motor carrier, the carrier itself can be on the hook for the driver’s conduct. There are recognized defenses (independent contractor status, frolic and detour, conduct outside the scope of employment), and the analysis is fact-dependent. But in most on-the-clock commercial truck crashes, employer liability is a serious exposure for the carrier, not just the driver.
Potential defendants in a Phoenix truck case can include:
Identifying every defendant matters because each carries its own insurance. With federal coverage on the truck itself, plus often a separate policy for the motor carrier, plus excess and umbrella layers, the realistic compensation picture in a serious truck case can be very different from a typical car crash. Finding the full coverage stack is part of the job.
Because of the mass and force involved, injuries from truck crashes tend to be severe and long-lasting. Our team handles cases involving:
The medical and economic exposure on these injuries is one of the reasons federal coverage floors are higher for commercial trucks in the first place. It is also why settlement timelines on serious truck cases can run longer than typical car claims. Full damages cannot be evaluated until the medical picture stabilizes.
Arizona allows truck accident victims to recover both economic and non-economic damages, and in narrow circumstances, punitive damages. The value of any particular case depends on injury severity, treatment history, liability proof, available coverage, and how well the damages are documented. Anyone giving you a specific dollar figure on day one is guessing.
Economic damages are the out-of-pocket and provable financial losses caused by the crash. They include:
Non-economic damages compensate harms that do not arrive with a receipt. They include:
Arizona does not cap non-economic damages in personal injury cases. Article 2, § 31 of the Arizona Constitution provides that “no law shall be enacted in this state limiting the amount of damages to be recovered for causing the death or injury of any person,” and Article XVIII, § 6 provides that “the right of action to recover damages for injuries shall never be abrogated.” That is a meaningful advantage for injured plaintiffs compared to states that cap non-economic damages by statute.
Punitive damages are available only in rare cases. In Linthicum v. Nationwide Life Insurance Co., 150 Ariz. 326, 723 P.2d 675 (1986), the Arizona Supreme Court held that punitive damages require clear and convincing evidence that the defendant acted with an “evil mind,” meaning either an intent to injure or a conscious disregard of a substantial and unjustifiable risk of significant harm to others. Drunk driving by a commercial driver, falsified hours-of-service logs, or knowingly dispatching an unfit driver are the kinds of facts that can support a punitive claim.
Arizona follows Arizona’s pure comparative negligence rule, codified at A.R.S. § 12-2505. You do not lose your right to damages because you share some fault. Your recovery is reduced in proportion to your percentage of fault.
A concrete example. Suppose total damages are $500,000 and the jury finds you 20% at fault for the crash (maybe you were a few miles per hour over the limit, or briefly out of your lane). The recovery is reduced by 20%, leaving $400,000. Even if you were 80% at fault, you could still recover 20% under Arizona’s rule. That is more forgiving than the modified comparative negligence rule followed in many other states, which bars recovery once a plaintiff crosses a 50% or 51% fault threshold.
The defense will look for any reason to push fault onto you. That is why early evidence work, including the truck’s ELD and dashcam data, matters so much. Hard data often beats narrative.
To win a truck accident case in Arizona, you have to prove negligence. That requires four elements:
In commercial truck cases, federal regulations help define the standard of care. An hours-of-service violation, an ELD falsification, or a skipped inspection can be strong evidence of breach. Pair that with telematics data showing speed and braking, plus medical records tying the injuries to the crash, and you have a case.
Key evidence sources include:
Recovering this evidence is not something an injured person should be doing from a hospital bed. That is the job of the legal team.
The Arizona statute of limitations for personal injury claims is 2 years from the date of the injury, under A.R.S. § 12-542. Miss the deadline and the right to sue is gone, regardless of how strong the case was.
Truck crashes carry several additional deadlines that catch people off guard:
Earlier is better either way. Evidence is freshest in the first weeks, witnesses are easiest to find, and the federal preservation rules give you a real window to lock down ELD data.
Our team handles truck accident cases on a contingency fee basis. That means no attorney’s fees unless we recover. The percentage and the handling of case costs are spelled out in the written fee agreement before any work begins. The free case review is exactly that, free, and there is no obligation to hire us after the call.
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