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Semi-Truck and Commercial Vehicle Accidents: Why These Cases Are Different

Pogosyan Law Team
05-14-2026
Semi-Truck and Commercial Vehicle Accidents: Why These Cases Are Different

Commercial truck accidents are among the most devastating on California roads. According to NHTSA's risky driving data, large trucks are disproportionately involved in fatal multi-vehicle crashes - and when they are, the occupants of the smaller vehicle bear the worst consequences. These cases are also legally and procedurally far more complex than a standard car accident claim.

Why Truck Accident Cases Are More Complex

Unlike a two-car accident, a commercial truck crash can involve multiple liable parties and layers of state and federal regulation. Potential defendants include:

  • The truck driver personally
  • The trucking company (employer)
  • The cargo loading company (if improper loading caused the crash)
  • The truck manufacturer (if a defect contributed)
  • A maintenance company (if negligent repairs failed)
Federal motor carrier regulations are administered by the FMCSA (Federal Motor Carrier Safety Administration). FindLaw's car and truck accident overview explains how federal rules intersect with state personal injury law in California.

Federal Hours of Service Rules and Driver Fatigue

A truck driver looking fatigued at a rest stop
A trucking logbook with handwritten entries on a seat

Federal Hours of Service (HOS) regulations strictly limit how long a commercial driver may drive without rest. Violations of these rules - often documented in digital ELD (Electronic Logging Device) records - are powerful evidence of negligence. Common violations include:

  • Driving more than 11 hours in a shift
  • Falsifying logbook entries
  • Carriers pressuring drivers to exceed legal limits
ELD data, dashcam footage, and black-box records are critical evidence in truck accident cases - but they must be preserved immediately through a legal hold letter. Delays allow carriers to legally destroy this data.

Trucking Company Liability

Under a legal doctrine called 'respondeat superior,' trucking companies are typically liable for the negligent acts of their drivers while working. Companies may also be independently liable for:

  • Negligent hiring (failing to screen driver history)
  • Negligent training or supervision
  • Inadequate vehicle maintenance programs
  • Pressuring drivers to violate HOS rules
Justia's injury resources at justia.com/injury cover employer liability doctrines applicable to California trucking cases.

Types of Truck Crashes and Their Causes

An aerial photo of a jackknife truck accident on a freeway
A commercial truck making a wide right turn at an intersection

  • Jackknife accidents - trailer swings out of control
  • Underride crashes - smaller vehicle slides under the trailer
  • Rollover accidents - often linked to top-heavy or improperly loaded cargo
  • Wide turn collisions - trucks cutting off vehicles in adjacent lanes
  • Brake failure - linked to maintenance neglect

Damages in Truck Accident Cases

Because truck accidents tend to cause catastrophic injuries, the damages recoverable are often much larger than in typical car accident cases. California allows recovery for:

  • Current and projected future medical costs
  • Long-term rehabilitation and home care
  • Lost wages and future earning capacity
  • Pain, suffering, and permanent disability
  • Wrongful death damages for families of fatalities
Learn more about catastrophic injury claims on our catastrophic injuries page. For insurance tactics you should be aware of after a truck crash, read our blog on why insurance companies delay personal injury claims and seven signs your insurance company is acting unfairly.

At Pogosyan Law Firm , we have the resources and litigation experience to take on large trucking carriers and their insurers. Visit our truck accident page or call (818) 243-3900 today.