Who Is Liable in a Semi Truck Accident in California? Driver, Carrier, Owner, Broker

By the Sky Law Group Editorial Team · Reviewed by Shakeal Masoud, Esq. (California State Bar No. 246309) · Reviewed November 9, 2026

Short answer: In a California semi truck crash, the driver is the first person people blame, but the trucking company is often the party that carries the insurance and the legal responsibility. Depending on the facts, others can share responsibility too: a company that loaded the cargo, a broker that arranged the shipment, a maintenance shop, or the truck’s owner. Most California injury lawsuits must be filed within two years (CCP §335.1). Call Sky Law Group at (844) 475-9529 — Hablamos Español.

Why “who was driving?” is only the first question

If you were hurt in a car by a big rig on the I-5 near Katella, the 91 through Anaheim and Fullerton, the 57 or the 22 and 405 near Garden Grove, you may feel certain about one thing: the driver did it. The driver may well be responsible. But a truck crash claim is rarely just about one person. A commercial truck is a business asset, run on a schedule, loaded by one company, maintained by another and often insured under the carrier’s policy. Where responsibility lands decides which insurance policies are in play, and that can shape the whole claim.

The parties who may be responsible

The truck driver

A driver can be at fault for ordinary reasons: speeding for conditions (Veh. Code §22350), following too closely (Veh. Code §21703), drifting out of a lane, distraction or fatigue. Federal hours-of-service limits for commercial drivers are found in 49 CFR Part 395.

The trucking company (the carrier)

Under California law, an employer is generally responsible for harm caused by an employee acting within the scope of the job. If the driver was an employee on a delivery run, the company may answer for the crash. The company can also face its own claims, such as negligent hiring, training or supervision, or pushing schedules that tempt drivers to skip rest. Driver qualification and vehicle maintenance duties for carriers appear in 49 CFR Parts 391 and 396.

The truck’s owner

The company that operates the truck is not always the company that owns it. California has a statute making an owner responsible, within limits, when someone drives the vehicle with the owner’s permission (Veh. Code §17150). The limits matter, so do not assume it covers everything.

The shipper or loader

An improperly loaded or overweight trailer can shift, sway or roll. If a company other than the carrier loaded the cargo, its role may be part of the claim.

The freight broker

Brokers arrange for a carrier to move a load. Whether a broker can be held responsible for choosing an unsafe carrier is a contested federal-law question, and courts have not all answered it the same way. It is a reason to have a lawyer look at the paperwork, not a reason to assume either way.

Maintenance shops and parts makers

Failed brakes, a tire blowout or a defective part can point beyond the driver. Maintenance records and the damaged part itself become important evidence.

Owner-operators and “independent contractors”

Some carriers say the driver is an independent contractor, which they claim limits the company’s responsibility. That label is not always the end of the story. How much control the company had over the driver, whose name and DOT number are on the truck, and whose insurance covers the trip can all matter. If you were told “the driver is on his own,” do not accept that without a lawyer reviewing it.

Shared fault in California

California follows pure comparative fault, which means your recovery is reduced by your share of the blame but not eliminated, even if you were partly at fault (Li v. Yellow Cab Co., 1975). Insurers for trucking companies often try to assign a share of fault to the other driver. When several parties share the blame, how damages are divided can depend on the type of damages (Civ. Code §1431.2). This is why the details of the crash, and the records that prove them, matter.

How to find out who is behind the truck

• Photograph the company name, USDOT number and license plates on the cab and trailer if you can do so safely.
• Ask for the driver’s name, employer and insurance information, and get witness contact details.
• Look for the police or CHP report number.
• Carriers operating in California generally must hold a motor carrier permit (Veh. Code §34620 and following); a lawyer can use the permit and USDOT numbers to identify the company and the policy.
• Do not give any insurer a recorded statement before speaking with a lawyer; read why not.

The records that show these answers can disappear on a routine schedule. Read our guide on what evidence to preserve after a semi truck crash, and the timeline in hit by a semi truck in Orange County: the first 48 hours.

Port and container trucks add another layer

Trucks hauling containers from the Ports of Los Angeles and Long Beach pass through Orange County on the 91 and the 22/405. These loads can involve a drayage company, a shipping line, a terminal and a cargo owner. See our page on port and container truck accidents, and our overview of truck accident claims in Orange County.

Deadlines

Most California personal injury lawsuits must be filed within two years of the injury (CCP §335.1; see our statute of limitations guide). If a public agency owned the truck, a written claim is generally due within six months (Gov. Code §911.2). Treatment matters too: tell your doctors what happened, and follow their advice at places like UCI Medical Center in Orange or your own provider.

Sky Law Group is at 303 W. Katella Ave., Suite 301, in Orange. See our Orange County car accident lawyer page, or call (844) 475-9529 for a free consultation. Se habla español: abogado de accidentes de traila.

Sources

• Cal. Code Civ. Proc. §335.1; Cal. Gov. Code §911.2; Cal. Civ. Code §1431.2.
• Cal. Veh. Code §§21703, 22350, 17150, 34620 et seq.
• Federal Motor Carrier Safety Regulations, 49 C.F.R. Parts 391, 395 and 396.
• Li v. Yellow Cab Co., 13 Cal.3d 804 (1975).

Frequently asked questions

Who is liable in a semi truck accident in California?

Possibly the driver, the trucking company, the truck’s owner, a shipper or loader, a broker, or a maintenance provider, depending on what the records show.

Can I sue the trucking company and not just the driver?

Often yes. An employer can be responsible for an employee acting within the job, and a company can also face claims for its own hiring, training or maintenance practices.

What if the driver says he is an independent contractor?

That label does not automatically end the company’s responsibility. Control over the driver, whose DOT number is on the truck and whose insurance applies can all matter.

Can a freight broker be held responsible?

It depends on the facts and on federal law that courts have not applied uniformly. A lawyer can review the shipping paperwork to see whether a broker is involved.

What if the cargo was loaded badly?

If a company other than the carrier loaded the trailer and the load shifted or caused a rollover, that company may be part of the claim.

Does it matter who owns the truck?

It can. California law can make an owner responsible within limits when someone drives with permission, and ownership can also affect which insurance policies apply.

What if I was partly at fault?

California’s pure comparative fault rule reduces your recovery by your share of the blame instead of barring it.

How do I find out which company owns the truck?

Photograph the company name, USDOT number and plates if you can. A lawyer can often identify the carrier and its insurance from those details.

How long do I have to file a lawsuit?

Generally two years for personal injury in California (CCP §335.1). Claims against government entities have a six-month claim deadline (Gov. Code §911.2).

Can I talk to a lawyer in Spanish?

Yes. Our attorneys speak Spanish themselves. Hablamos Español.

Hurt in a crash with a semi truck? Call (844) 475-9529 for a free consultation. Hablamos Español.

Attorney advertising. This article is general information, not legal advice, and does not create an attorney-client relationship. Past results do not guarantee a similar outcome.