John Roach, Esq. | October 1, 2026 | Car Accidents
San Francisco Truck Accident Lawyer: Is the Driver, the Trucking Company, or the Broker Liable?
Getting hit by a fully loaded semi is not the same event, legally, as getting hit by a sedan. A big rig can weigh 20 to 30 times what a passenger car weighs, and the company that put it on the road is regulated by a completely different body of law than an ordinary driver. That difference matters because it usually means more than one party is on the hook — and it means the insurance available to pay for what happened to you is often many times larger than a standard auto policy.
As a San Francisco truck accident lawyer, I’ve seen how often injured people assume they’re dealing with “the truck driver’s insurance” the same way they’d deal with a fender-bender. They’re not. A serious commercial truck case can involve the driver, the motor carrier that employed or contracted with him, the company that owns the trailer, the broker who arranged the load, and sometimes a maintenance contractor or the parts manufacturer. Figuring out which of those parties actually caused the crash — and which of them has the insurance to pay for it — is most of the work in a trucking case.
The Driver: Negligence Looks Familiar, the Stakes Don’t
At the most basic level, a truck accident case starts the same way any car accident case does: did the driver breach a duty of care? Speeding, following too closely, unsafe lane changes, and distracted driving all apply just as they would to any other vehicle.
But commercial truck drivers operate under an added layer of federal regulation that ordinary drivers don’t. The Federal Motor Carrier Safety Administration (FMCSA) sets hours-of-service rules limiting how long a driver can be behind the wheel before resting, and most commercial trucks are required to run electronic logging devices (ELDs) that record drive time automatically. When a driver blows through hours-of-service limits, or when the ELD data shows a pattern of fatigue-driving right up to the moment of the crash, that’s not just evidence of negligence — it’s evidence of a federal safety violation, which juries and insurance adjusters both take seriously.
The Trucking Company: Two Separate Ways to Be Liable
This is where truck cases diverge from ordinary car accident cases, and it’s the single most important thing to understand if you were hurt by a commercial vehicle.
First, there’s vicarious liability. Under the legal doctrine of respondeat superior, an employer is responsible for the negligent acts of an employee committed within the scope of employment. If the driver worked for the carrier and was hauling freight when the crash happened, the carrier is typically on the hook for the driver’s negligence — full stop.
Second, and often more valuable to an injured claimant, there’s the carrier’s own independent negligence. This is liability the company incurs regardless of what the driver did, because of decisions the company itself made:
- Negligent hiring — putting a driver on the road with a disqualifying safety record, expired medical certification, or a history of violations that a basic background check would have caught.
- Negligent training — failing to properly train a driver on load securement, mountain grades, or defensive driving in dense urban traffic like San Francisco’s.
- Negligent retention — keeping a driver employed after repeated safety complaints, prior crashes, or documented hours-of-service violations.
- Negligent maintenance — skipping required inspections, ignoring known brake or tire defects, or falsifying maintenance logs. Commercial trucks are subject to federally mandated inspection schedules; a company that cuts corners on maintenance to keep trucks moving is often the real reason a truck couldn’t stop in time.
These theories matter because a company found independently negligent — as opposed to simply vicariously liable for its driver — faces a much harder time limiting its exposure, and the evidence supporting these claims (personnel files, maintenance logs, prior violation history) is exactly what a trucking case investigation is built to uncover.
The Broker: A Newer, More Contested Front
Freight brokers arrange for a shipper’s cargo to be hauled by a motor carrier, without owning trucks themselves. For years, brokers argued they couldn’t be held liable for a crash caused by a carrier they merely hired — after all, they weren’t driving the truck.
That argument has weakened. Courts in multiple jurisdictions have allowed negligent-selection claims against brokers who hire carriers with poor safety records, unsafe FMCSA safety ratings, or a documented history of violations, when a basic vetting process would have revealed the risk. Brokers have pushed back using federal preemption arguments under the Federal Aviation Administration Authorization Act (FAAAA), and the law here continues to develop and varies depending on the specific facts and the court. What this means practically: when a broker was involved in arranging the load, it’s worth investigating whether the broker knew or should have known the carrier it selected was a poor safety risk. That’s not a theory to guess at — it takes broker-carrier contracts, safety-rating history, and vetting records to prove.
Why the Insurance Numbers Are Different
This is the part that surprises most people. A standard California auto policy might carry $15,000 to $100,000 in liability coverage. Commercial trucking is federally regulated to carry far more. Under FMCSA rules, interstate motor carriers hauling general freight must carry a minimum of $750,000 in liability coverage, and that minimum rises to $1 million or more for carriers hauling hazardous materials, and up to $5 million in certain hazmat categories. That’s not a number a car insurance adjuster is used to working with, and it’s part of why trucking cases are litigated so differently than ordinary car accident claims — there is meaningfully more money on the table, and the companies whose money it is fight harder to keep it.
The Evidence Window Closes Fast
Commercial trucks generate an unusual amount of data, and almost all of it can be overwritten or destroyed if nobody moves quickly to preserve it:
- Electronic Control Module (ECM) / “black box” data — speed, braking, throttle position, and often hours immediately before the collision.
- Electronic logging device (ELD) records — the federally mandated hours-of-service log.
- Dashcam and telematics footage, where equipped, is frequently retained for only a matter of days before automatic overwrite.
- Driver qualification files — the carrier’s own hiring and training records.
- Maintenance and inspection logs, which can reveal whether a known defect went unaddressed.
A spoliation letter — formal notice to the carrier demanding preservation of this evidence — needs to go out immediately after a serious truck crash, before routine data-retention cycles erase it. This is one of the clearest reasons trucking cases reward moving fast and hiring counsel early, rather than waiting to see how the insurance company handles things.
When a Public Roadway Is Part of the Story
Trucking crashes on Caltrans highways, city arterials, or county roads sometimes involve a road-design or maintenance defect alongside driver and carrier negligence — a poorly marked grade, an inadequate guardrail, a signal malfunction at a truck route intersection. If a public entity’s roadway defect contributed to the crash, California Government Code §911.2 imposes a strict six-month deadline to file a government claim — far shorter than the two-year statute of limitations that applies to the private parties in the same case. Missing that six-month window can permanently bar a claim against the public entity, even while claims against the driver and carrier remain open. If your crash happened on a public roadway and something about the road itself seemed wrong, that angle needs to be evaluated immediately, not months later.
Building a Trucking Case Takes Trial-Tested Experience
Trucking companies and their insurers know these cases are worth more, and they defend them accordingly — often with a rapid-response investigation team on scene within hours of a serious crash. Matching that requires a lawyer who knows what to demand, how fast to demand it, and how to try a case if the carrier won’t pay what it owes. I’ve represented injured clients since 2009, with extensive trial experience taking cases in front of Bay Area juries when insurers refuse to be reasonable — including truck and commercial-vehicle cases where identifying every liable party was the difference between an adequate settlement and a lowball one.
If you or someone you love was hurt in a crash involving a commercial truck, the sooner the evidence gets locked down, the stronger your case will be. Call the Law Office of John J. Roach at (415) 851-4557 for a free consultation, or reach out in Spanish — se habla español.
Yes. Under respondeat superior, an employer is generally liable for the negligent acts of an employee committed within the scope of employment. If the driver was on duty hauling freight for the company, the company is typically responsible for the driver’s negligence in addition to any negligence of its own.
Independent-contractor status doesn’t automatically shield a motor carrier from liability. Courts look at how much control the carrier actually exercised over the driver’s work, and federal trucking regulations impose certain non-delegable safety duties on carriers regardless of how the driver is classified on paper. This is exactly the kind of question that needs a full investigation rather than an assumption either way.
Federal law requires interstate motor carriers to carry a minimum of $750,000 in liability coverage for general freight, rising to $1 million or more for many hazardous materials, and up to $5 million for certain high-risk hazmat categories. That’s substantially more than the minimum coverage on a standard personal auto policy.
A broker arranges for a shipper’s cargo to be transported by a motor carrier but doesn’t own or operate the trucks itself. Brokers can potentially be held liable under a negligent-selection theory if they hired a carrier with a known poor safety record or unsafe FMCSA rating, though the law in this area continues to develop and the facts of each case matter significantly.
Most commercial trucks have an Electronic Control Module that records speed, braking, and throttle data — often for the minutes immediately before a crash. This data can show whether the driver braked in time, was speeding, or ignored warning signs, but it can be overwritten within days if a preservation letter isn’t sent immediately.
Possibly. If a defect in the roadway itself — poor design, inadequate signage, a malfunctioning signal — contributed to the crash, you may have a separate claim against the public entity responsible for that road. California law requires that claim to be filed within six months, far sooner than the two-year deadline for claims against the driver and trucking company, so this needs to be evaluated right away.
For claims against private parties like the driver, trucking company, or broker, California’s statute of limitations is generally two years from the date of the crash. If a government entity is involved because of a roadway defect, that separate claim carries a six-month deadline instead.
Trucking cases involve federal regulations, evidence that disappears quickly, and insurance companies with far more resources than a typical auto claim. A lawyer who understands FMCSA rules, ECM data, and multi-party liability — and who is prepared to take the case to trial if the carrier won’t pay fairly — gives you a meaningfully stronger position than general auto-accident handling would.