Semi-Truck Accident
Semi-truck accidents — collisions involving tractor-trailers operating in interstate commerce — involve a distinct legal framework from passenger vehicle accidents. The motor carrier, the tr...
Semi-Truck Accident guide →Being rear-ended by a commercial truck — because of following distance violations, driver inattention, brake failure, or hours-of-service fatigue — typically places strong liability on the truck driver and carrier. FMCSA regulations require
This page provides general legal information about rear-ended by commercial truck claims in California. It does not provide legal advice. Consult a licensed California attorney for guidance specific to your situation.
Being rear-ended by a commercial truck — because of following distance violations, driver inattention, brake failure, or hours-of-service fatigue — typically places strong liability on the truck driver and carrier. FMCSA regulations require commercial drivers to maintain safe following distances under 49 CFR Section 392.21 (following too closely). The severe mass differential between a loaded commercial truck and a passenger vehicle produces disproportionately serious injuries.
Commercial freight accidents in California involve a federal regulatory framework that creates liability theories unavailable in ordinary vehicle accident cases. FMCSA violations establish negligence per se. ELD and EDR data provide objective evidence of driver conduct. Commercial insurance minimums of $750,000 to $5,000,000 provide substantially higher coverage than personal auto policies. And multi-defendant litigation against the carrier, shipper, truck owner, and maintenance company is the norm rather than the exception.
In a rear-ended by commercial truck case, the motor carrier bears primary vicarious liability under respondeat superior and direct liability for FMCSA compliance failures. The truck driver bears personal liability for negligent driving. The truck owner (if different from the carrier) may be liable for the vehicle's mechanical condition. The cargo shipper may be liable if loading or securement contributed to the accident. The maintenance company may be liable if defective brake work or tire service contributed. Equipment manufacturers may be liable under Greenman v. Yuba Power Products strict products liability if a vehicle defect caused or contributed to the accident.
California's pure comparative fault system from Li v. Yellow Cab Co. (1975) allocates fault among all liable parties. Proposition 51 (Civil Code Section 1431.2) makes defendants jointly and severally liable for economic damages but liable only for their proportionate share of non-economic damages in multi-defendant cases.
The following FMCSA regulatory areas are most commonly implicated in rear-ended by commercial truck cases. A violation of any applicable standard that causally contributed to the accident establishes negligence per se — the violation satisfies the negligence element without further proof of unreasonable conduct.
General freight carriers: $750,000 minimum liability. Hazardous materials (listed substances): $5,000,000 minimum. Oil: $1,000,000 minimum. These minimums set the floor; most major carriers maintain policies substantially above these amounts plus umbrella coverage.
FMCSA-regulated carriers must maintain minimum liability insurance of $750,000 for general freight or $5,000,000 for hazardous materials. In serious rear-ended by commercial truck cases, the full insurance stack includes the carrier's primary commercial auto policy, umbrella or excess coverage, the truck owner's policy (if the truck is owned separately), and potentially the shipper's liability policy. All applicable policies must be identified and disclosed through the discovery process.
California freight accident civil claims recover: all past and future medical expenses (no cap); lost wages and lost earning capacity; property damage; non-economic damages (pain, suffering, emotional distress, disfigurement, loss of enjoyment of life) — uncapped; and punitive damages under Civil Code Section 3294 when the carrier acted with malice or conscious disregard of known safety violations. In catastrophic injury cases involving spinal cord injury, traumatic brain injury, or wrongful death, lifetime economic damages may reach several million dollars.
Two years from the date of the accident under CCP Section 335.1. Claims against government entities (Caltrans for highway defects, port authorities for port area defects) require a written administrative claim within six months under Government Code Section 945.4. Missing either deadline permanently bars that claim. Because ELD, EDR, and carrier communications are subject to automated deletion, a written preservation demand should be sent to the carrier and all other defendants as soon as possible after the accident.
The truck driver and motor carrier bear primary liability under respondeat superior. FMCSA Section 392.21 requires commercial drivers to maintain safe following distances — a violation establishes negligence per se. The contributing factors typically include: tailgating, driver fatigue (ELD data establishes HOS status), brake failure (maintenance records establish pre-existing defects), and distracted driving.
A loaded semi-truck weighs up to 80,000 pounds compared to a passenger vehicle's 3,000-4,000 pounds. The kinetic energy differential between the vehicles means that even a low-speed truck rear-end impact produces severe structural damage to the passenger vehicle and serious occupant injuries. Rear-end truck collisions at highway speed frequently produce traumatic brain injury, spinal cord injury, and fatalities at a rate far exceeding equivalent-speed passenger-vehicle collisions.
Yes. California's pure comparative fault system from Li v. Yellow Cab Co. allows recovery even if the victim was partly at fault. If the victim was driving slightly below the speed limit and the truck driver was following too closely and failed to brake in time, the truck driver's fault will dominate the comparative fault analysis.
Key evidence includes: ELD records (establishes HOS status and driving time at the time of impact), event data recorder (EDR) data from the truck's black box (speed, braking, and throttle data in the seconds before impact), dashcam footage, pre-trip inspection records (brake condition), driver qualification file, and carrier safety compliance history from FMCSA's SAFER database.
Most commercial trucks are equipped with event data recorders (EDRs) — electronic devices that capture vehicle speed, braking inputs, throttle position, and other operational data in the seconds before and during a crash. EDR data is among the most powerful evidence in a commercial truck accident case and must be preserved through early written demand before the data can be overwritten.
Two years from the date of the accident under CCP Section 335.1. The truck's EDR data, ELD records, and maintenance history are subject to retention policies that may destroy evidence within months — preservation demands must be sent to the carrier immediately.
Semi-truck accidents — collisions involving tractor-trailers operating in interstate commerce — involve a distinct legal framework from passenger vehicle accidents. The motor carrier, the tr...
Semi-Truck Accident guide →Hours-of-service (HOS) violations are among the most powerful evidence in commercial truck accident litigation. FMCSA 49 CFR Part 395 limits truck drivers to 11 hours of driving in a 14-hour...
Hours of Service Violation Accident guide →Cargo securement failures — including improperly secured loads that fall onto highways, tanker spills that create hazardous road conditions, and flatbed loads that shift and destabilize a tr...
Cargo Spill / Unsecured Load Accident guide →