FMCSA rules under 49 CFR §390, black box evidence, multiple defendants, and California's two-year deadline under CCP §335.1
By John Quigley · Updated June 5, 2026
A collision with an 80,000-pound tractor-trailer is nothing like a typical car accident. The injuries are more severe, the insurance policies are larger, the defendants are more numerous, and the evidence — much of it digital and federally regulated — can disappear within weeks if no one acts to preserve it. San Diego County sees a steady stream of serious truck crashes along its three major freight corridors: I-5 running north from the Otay Mesa and San Ysidro border crossings, I-15 carrying goods inland toward Riverside, and I-8 connecting the region to Imperial Valley and Arizona. Add the port traffic around Barrio Logan and National City and the warehouse growth in Otay Mesa, and commercial truck volume in the county keeps climbing.
This guide explains the federal regulations that govern trucking companies, the unique evidence in a truck case, who can be held liable under California law, and the deadlines that control your claim in San Diego Superior Court.
Three things separate a truck case from an ordinary auto claim. First, the trucking industry is governed by a dense layer of federal safety regulations — the Federal Motor Carrier Safety Regulations (FMCSRs), codified at 49 CFR §§350–399, with the general applicability provisions at 49 CFR §390. A violation of these rules can establish negligence per se under California Evidence Code §669, meaning the violation itself proves the breach of duty if it caused the type of harm the regulation was designed to prevent.
Second, the financial stakes are higher. While ordinary California drivers must carry the minimum liability coverage and show financial responsibility under Vehicle Code §16020, commercial motor carriers are subject to dramatically higher insurance requirements — federal minimums under 49 CFR §387 range from $750,000 for general freight to $5,000,000 for certain hazardous materials. That coverage matters when injuries involve spinal damage, traumatic brain injury, or wrongful death.
Third, liability rarely stops with the driver. The motor carrier, the freight broker, the trailer owner, the cargo loader, and the maintenance contractor may all share fault — and identifying each of them early is often the difference between a fully compensated claim and a partial one.
Driver fatigue is one of the most common causes of serious truck crashes. Federal hours-of-service rules limit property-carrying drivers to 11 hours of driving within a 14-hour on-duty window, require a 30-minute break after 8 cumulative hours of driving, and cap total on-duty time at 60 hours over 7 days or 70 hours over 8 days. Drivers must record duty status on an Electronic Logging Device (ELD) under 49 CFR §395.8.
Carriers must verify that every driver holds a valid commercial driver's license, review driving records annually, and maintain a driver qualification file. Post-accident drug and alcohol testing is mandatory under 49 CFR §382.303 after crashes involving a fatality or certain injury/tow-away scenarios. A carrier that put an unqualified or unvetted driver on the road faces direct liability for negligent hiring under California common law.
Carriers must systematically inspect, repair, and maintain every vehicle, and drivers must complete daily inspection reports. Brake failures, tire blowouts, and lighting defects on a poorly maintained rig are classic §396 violations — and the maintenance file is discoverable.
Modern commercial trucks generate an extraordinary amount of data:
| Defendant | Theory of Liability |
|---|---|
| Truck driver | Negligence; negligence per se for FMCSR or Vehicle Code violations |
| Motor carrier | Respondeat superior; negligent hiring, training, supervision, and retention |
| Freight broker / shipper | Negligent selection of an unsafe carrier |
| Cargo loader | Improper loading or securement (49 CFR §393 violations) |
| Maintenance contractor | Negligent repair or inspection |
| Vehicle/parts manufacturer | Strict products liability for defective components |
California's pure comparative negligence system, established in Li v. Yellow Cab Co. (1975) 13 Cal.3d 804 under the framework of Civil Code §1714, allocates fault among all responsible parties — including the plaintiff. Even if the insurance company argues you were partially at fault, your recovery is reduced by your percentage of fault, not eliminated.
One important nuance: under Proposition 51 (Civil Code §1431.2), defendants are jointly and severally liable for economic damages (medical bills, lost wages) but only severally liable for non-economic damages (pain and suffering) in proportion to their fault. With multiple defendants, this allocation can substantially affect strategy.
The statute of limitations for personal injury and wrongful death in California is two years under Code of Civil Procedure §335.1. For property damage only, CCP §338 allows three years.
Truck cases filed in San Diego County are heard in San Diego Superior Court — most commonly at the Central Courthouse downtown on Union Street, though venue may lie at the North County branch in Vista or the East County branch in El Cajon depending on where the crash occurred. Crashes near the border crossings at Otay Mesa and San Ysidro often involve cross-border carriers, drayage operators, and federal jurisdictional questions that add complexity.
A well-run claim generally follows this sequence:
An injured person may recover economic damages — past and future medical expenses, lost earnings, and diminished earning capacity — and non-economic damages for pain, suffering, disfigurement, and loss of enjoyment of life. Unlike medical malpractice cases, ordinary truck accident claims carry no cap on non-economic damages. Where the evidence shows malice, oppression, or a conscious disregard for safety — for example, a carrier that knowingly forced drivers to falsify logs — punitive damages may be available under Civil Code §3294.
For more on California crash claims generally, see our San Diego car accident guide, or browse truck accident attorneys in San Diego.
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