By Stephen Hasner, Esq., Hasner Law, PC | Updated September 2026
Being involved in a semi-truck accident involves a lot of moving parts, in more ways than one. Due to their size and weight, these vehicles often cause far more damage than standard cars, increasing the risk of serious injuries and property loss. Knowing what to do in the aftermath can protect your safety, preserve evidence that disappears faster than most people expect, and put you in a stronger position if you end up filing a claim.
Why Semi-Truck Accidents Are More Hazardous — and More Complicated
A loaded semi-truck can legally weigh up to 80,000 pounds under federal weight limits, compared to roughly 3,000 to 4,000 pounds for a typical passenger car. That disparity is why truck crashes tend to produce more severe injuries, more extensive property damage, and a higher likelihood of fatalities than an ordinary two-car collision.
These cases are also legally different, not just physically worse. Commercial trucking is governed by an extensive body of federal regulation through the Federal Motor Carrier Safety Administration (FMCSA) under 49 C.F.R. Parts 390–397, covering driver hours-of-service limits, vehicle maintenance, cargo securement, and driver qualification standards. Liability can extend well beyond the driver to the trucking company, a cargo-loading contractor, a maintenance vendor, or a parts manufacturer, depending on what actually caused the crash.
Step 1: Prioritize Safety and Call for Help
Your first priority after any crash is safety. If you’re able, move your vehicle out of traffic to a safe location, turn on your hazard lights, and check yourself and any passengers for injuries.
- Call 911. Even if injuries seem minor, contact emergency services immediately. Police will document the scene, and medical professionals can evaluate and treat injuries on-site.
- Stay at the scene. Avoid panicking, and remain until authorities arrive. Leaving the scene, especially with injuries involved, can create separate legal problems.
Step 2: Document the Scene
Once you’ve addressed immediate safety and contacted emergency services, start documenting. This information becomes essential for insurance claims and any legal action that follows.
- Photos and video: vehicle damage, license plates, road conditions, skid marks, traffic signs, and any visible injuries.
- The driver’s information: name and contact information, employer or trucking company, insurance provider and policy number, and license plate and driver’s license number.
- Witnesses: names, contact information, and a brief note of what each person saw.
Avoid admitting fault or speculating about what caused the crash. A reflexive “I’m sorry” or a guess about who had the right of way can be misinterpreted and used against you later. Share factual information with law enforcement and your insurer, and let the investigation determine liability.
Step 3: Seek Medical Attention
Even if you feel fine, get evaluated as soon as possible. Whiplash, internal bleeding, and concussions don’t always show symptoms right away, and a prompt medical evaluation creates official documentation connecting your injuries to the crash — documentation that insurers and courts generally expect to see. Keep copies of all medical records, bills, and treatment plans.
Step 4: Notify Your Insurance Provider — Carefully
Report the accident to your own insurance company promptly. Provide the basic details, but avoid giving a recorded statement without consulting an attorney first, particularly in a case involving a commercial vehicle. Truck accident claims often involve multiple insurers — the driver’s, the carrier’s, and sometimes a broker’s or shipper’s — which makes it easy to say something in an early conversation that gets used against you later.
Step 5: Act Fast — Truck Accident Evidence Disappears on a Federal Clock
This is the step people most often underestimate, and it’s specific to trucking cases in a way that doesn’t apply to an ordinary car accident. Commercial carriers are only required to retain hours-of-service and electronic logging device (ELD) data for six months under 49 C.F.R. § 395.8. FMCSA’s hours-of-service rules cap a property-carrying driver at 11 hours of driving after 10 consecutive hours off duty, and prohibit driving past the 14th hour after coming on duty — and ELD data is often the clearest evidence of whether a driver was fatigued or over-hours at the time of the crash. In practice, some of this data, along with dashcam footage and a truck’s event data recorder information, can be overwritten well before the six-month mark once a vehicle goes back into service.
A written preservation letter, sometimes called a spoliation letter, sent to the trucking company promptly creates a legal obligation to hold onto this evidence rather than let it be recorded over or routinely purged. This is one of the more concrete reasons to involve an attorney early in a truck accident case rather than waiting — by the time many people decide to pursue a claim, some of the strongest evidence may already be gone.
A Case in Point
The following is drawn from a published case result, presented without additional identifying detail to protect client privacy.
Among the firm’s published case results is a $4,850,000 truck accident recovery, handled as co-counsel, listed on Hasner Law’s case results page. Results in cases like this typically depend on exactly the kind of early evidence — driver logs, maintenance records, cargo documentation — that becomes far harder to obtain once time has passed.
Past results depend on the specific facts of each case and do not guarantee or predict a similar outcome in any other matter.
Step 6: Consult a Truck Accident Attorney
Large-scale truck accidents can result in significant damages, and determining liability is more complex than in a standard car crash. Multiple parties may share responsibility, including the driver, the freight company (for negligence such as overloading cargo or inadequate training), and parts manufacturers if a mechanical failure contributed to the crash.
An experienced attorney can investigate the crash thoroughly, send preservation letters before evidence disappears, handle communications with insurers and other parties, and pursue compensation for medical expenses, lost wages, property damage, and pain and suffering. For a broader look at how these cases differ from an ordinary crash, see this guide to car, motorcycle, and commercial trucking accidents, and this discussion of why experience matters in high-stakes truck accident cases.
Know Your Filing Deadline
Every state sets a statute of limitations — a deadline for filing a personal injury lawsuit — and it varies significantly by state, commonly landing somewhere between one and four years from the date of the crash depending on where it happened. Missing that deadline generally means losing the right to pursue compensation, regardless of how strong the underlying case is, which is another reason not to let a truck accident claim sit for long before getting legal advice.
Keep All Documentation
Save everything related to the accident: police reports, medical records and bills, repair estimates or vehicle replacement costs, and any communication with insurers or other parties. This record is what a strong case is built on.
Frequently Asked Questions
How is a truck accident claim different from a car accident claim?
Truck accidents typically involve more potential defendants (the driver, the carrier, a cargo loader, a maintenance contractor), federal safety regulations that don’t apply to ordinary drivers, and time-sensitive evidence like ELD data that can legally be destroyed after six months.
How quickly should I contact an attorney after a truck accident?
As soon as reasonably possible. Sending a preservation letter early can be the difference between accessing hours-of-service and black box data and finding it already overwritten.
Who can be held responsible for a truck accident?
Potentially the driver, the trucking company, a cargo-loading company, a maintenance contractor, or a parts manufacturer, depending on what caused the crash.
Authorities & Sources
- Federal Motor Carrier Safety Administration — Federal Motor Carrier Safety Regulations, 49 C.F.R. Parts 390–397
- 49 C.F.R. § 395.8 — Driver’s Record of Duty Status (ELD retention)
Disclaimer
This article is provided for general informational purposes only and does not constitute legal advice. Federal trucking regulations, evidence retention rules, and state filing deadlines are fact-specific and can change. Reading this article does not create an attorney-client relationship. Anyone involved in a semi-truck accident should consult a licensed personal injury attorney promptly, because key evidence in these cases can become unavailable quickly.
