by Zayed Al-Sayyed

Truck AccidentMarch 16, 20260 comments

4 Laws that Affect Arizona Truck Accident Claims

Over 12,000 commercial vehicle accidents happen every year in Arizona. If you’ve been a victim of an 18-wheeler accident, there are ways to seek compensation. When you hire a truck accident lawyer in Phoenix, there are four laws they use to defend your case.

To win your case, you need a seasoned lawyer to help you navigate the complexities of injury law. Learn about these four laws and how a lawyer can help in this article.

Why You Need a Truck Accident Lawyer in Phoenix to Prove Liability

The foundation of any claim is “fault.” In Arizona, this is governed by negligence laws, but commercial cases add a layer called Vicarious Liability.

The Doctrine of Respondeat Superior

This law holds the trucking company responsible for the driver’s errors. Because truck drivers often have limited assets, whereas the trucking company has significant insurance policies. Under the legal doctrine of Respondeat Superior, an employer is held legally responsible for their employees’ actions.

Vicarious Liability

This means the company is liable for the driver’s negligence even if the company itself wasn’t present at the scene. If the driver was speeding or driving recklessly while within their scope of employment, the company is on the hook.

Multi-Party Negligence

Trucking companies operate massive supply chains. Often, the driver isn’t the only one who made a mistake. Proving liability frequently involves investigating several third-party actors.

Cargo Loaders

If a trailer is overloaded or the weight is distributed unevenly, it can cause it to “jackknife” or rollover. If a separate logistics company loaded its trailer, it may be liable for the cargo shift that led to a loss of control.

Maintenance Contractors

Many fleets outsource their repairs. If a repair was made by an independent contractor, and an accident was caused by a tire blowout or brake failure, a commercial vehicle accident lawyer will look at the maintenance logs. If a mechanic signed off on repairs that failed, they become the primary defendant in your claim.

  

Parts Manufacturer

Yes, even the parts manufacturer for an 18-wheeler can be held liable for an accident. Something as simple as a defective steering column can shift liability to the company that manufactured it.

Negligence Per Se

In most cases, you have to prove that the other person was being careless.  But in a truck vehicle accident, if the driver violates a specific law, your lawyer uses a law called Negligence Per Se to presume they were negligent.

This prevents you from having to argue about whether the driver was careful enough. Because your lawyer can prove they broke the law by driving for 14 hours straight, for example, it establishes fault in the eyes of the law.

Why A Truck Accident Attorney is The Key to Disappearing Evidence

In big cases involving an 18-wheeler, it’s not uncommon for evidence to “disappear.” A truck accident lawyer will immediately issue a Letter of Spoliation to prevent the trucking company from destroying critical data, including:

Electronic Logging Device—Could be used to prove the driver violated “Hours of Service” (HOS) regulations and worked while fatigued.

Event Data Recorder—Records speed, braking patterns, and throttle position seconds before impact.

Maintenance History—Reveals if the company knowingly sent a dangerous vehicle onto I-10 or I-17.

Important Point:

Arizona follows a Pure Comparative Fault system. This means even if you were 10% at fault, you can still recover 90% of your damages—but the trucking company’s legal team will still fight to shift blame onto you as much as possible. That’s why it’s so important to connect with an attorney who specializes in commercial accident law for your case.

How Insurance Companies Try to Devalue Your Claim

After a crash, it’s pretty common to get a phone call from an insurance adjuster who seems incredibly kind and helpful. Don’t be fooled. Their job is to protect the trucking company and its insurance’s bank account, not yours. They’re following a strategy known as the “Three D’s”: Delay, Deny, and Defend.

What to Watch Out For:

The Friendly Recorded Statement

The adjuster may ask you to tell them your side of the story on record. They are looking for you to say something innocent. Even something like, “I’m doing okay today,” can be used against you in court.

The Lowball Quick-Cash Offer

They could offer you a paycheck within days of your 18-wheeler accident. It may seem like a good lump sum, but before you seek treatment for your injuries, it often is far less than what you need to pay for treatment. Once you sign the settlement paperwork, you can never seek more compensation.

Blaming You

Arizona is a Comparative Fault state, as we covered earlier, which means the insurance company can trick you into admitting you were even 10% responsible for the accident, and they’ll slash your payout by that much.

Why Time Matters for Your Case

In Arizona, the clock starts ticking on your case the moment the collision happens. While you might hear that you have “plenty of time,” truck accidents have much stricter hidden deadlines than a standard car accident.

For government trucks, for example, you have 180 days from the date of your accident to file a claim with the state, city, or county. If you miss that window, you won’t have the right to sue the government over the accident.

For accidents involving private trucking companies, Arizona law gives you two years to file a lawsuit. Keep in mind, however, most evidence for big-truck vehicle accidents disappears within weeks of the accident.

The bottom line: Don’t wait to contact a truck accident attorney about your incident. Act fast for the best chance of full compensation.

Don’t Let the Clock Run Out on Your Justice

By hiring a truck accident lawyer in Phoenix early, you level the playing field. Your attorney acts as your shield, handling aggressive insurance adjusters on your behalf.

If you’ve been involved in a commercial truck accident, we want to help. Contact our law firm and start building a case that gives you a chance at compensation for your case.