Truck Underride Accidents in California — Legal Information | Freight Accident Law

Truck Underride Accident in California: Overview

Underride accidents occur when a passenger vehicle slides under the rear or side of a truck trailer, typically shearing off the passenger compartment roof and causing catastrophic injuries or death. Federal Motor Vehicle Safety Standard 223 requires rear underride guards on most trailers, but side underride guards are not federally mandated. Defective or missing underride guards are the basis for product liability claims against trailer manufacturers alongside negligence claims against carriers.

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.

Who Is Liable After a Truck Underride Accident

In a truck underride accident 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.

FMCSA Regulations in Truck Underride Accident Cases

The following FMCSA regulatory areas are most commonly implicated in truck underride accident 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.

• 49 CFR Part 395 — Hours of Service: 11-hour driving limit, 14-hour window, 30-minute break requirement, 60/70-hour weekly limit
• 49 CFR Part 396 — Vehicle Inspection and Maintenance: pre-trip inspection requirements, maintenance recordkeeping, out-of-service criteria
• 49 CFR Part 393 — Parts and Accessories: brake standards, tire requirements, cargo securement, lighting
• 49 CFR Part 391 — Driver Qualifications: CDL requirements, medical examiner certification, drug testing, employment history verification
• 49 CFR Part 387 — Insurance: minimum liability coverage requirements, certificates of insurance

Insurance Coverage in Truck Underride Accident Cases

FMCSA-regulated carriers must maintain minimum liability insurance of $750,000 for general freight or $5,000,000 for hazardous materials. In serious truck underride accident 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.

Damages Available: Truck Underride Accident in California

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.

Statute of Limitations: Truck Underride Accident Claims in California

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.

Critical Evidence in Truck Underride Accident Cases

• ELD records — Hours-of-service compliance at the time of the accident; must be preserved through immediate written demand to the carrier
• Event data recorder (EDR) — Vehicle speed, braking, throttle in the seconds before impact; download by qualified technician before the truck is repaired
• Driver qualification file — CDL, medical certificate, employment history, prior violations; establishes any negligent hiring claim
• Vehicle maintenance records — Pre-trip inspection logs, repair orders; establishes carrier's knowledge of any pre-existing mechanical defects
• Dispatch records — When the carrier assigned the load, the scheduled delivery time, and communications with the driver about delivery pressure
• FMCSA inspection history — Prior roadside citations and carrier safety audit results from the FMCSA SAFER database
• Dashcam footage — From the truck's forward-facing camera if equipped, or from other vehicles and roadway cameras
• Drug and alcohol test results — Post-accident testing required by 49 CFR Section 382.303 for certain accidents