What to Do After a Vehicle Accident

Capturing Commercial Vehicle Identifiers at the Scene

Every commercial vehicle carries markings that reveal its corporate ownership, regulatory status, and insurance coverage. These identifiers are your gateway to determining who is legally responsible. Photograph the company name and logo on the cab and trailer. Capture the DOT number — a unique identifier assigned by the Federal Motor Carrier Safety Administration — which is typically displayed on the driver-side door. If the trailer bears a separate company name or registration number, photograph that as well because the trailer owner may be a different entity from the trucking company.

Record the vehicle's license plate numbers (cab and trailer separately if they differ), the VIN visible through the windshield, and any hazmat placards or oversize-load signs. If the driver is wearing a company uniform or ID badge, note the company name. Ask the driver whether they are an employee or an independent contractor — the answer affects who shares liability. Write all of this down in addition to photographing it, because glare, angles, or camera focus can make photos of small text unreadable later.

Evidence That Exists Only in the First 48 Hours

Commercial vehicle crashes produce time-sensitive evidence that does not exist in standard car accidents. The driver's electronic logging device records hours-of-service data that may show fatigue-related violations — but ELD data can be overwritten when the driver starts a new trip. Post-crash drug and alcohol testing of the commercial driver is required by federal regulation within specific timeframes. If the carrier fails to test or delays testing, that failure itself becomes evidence.

Onboard cameras, if the vehicle is equipped, record continuously and overwrite on loops that may run as short as 24 to 72 hours. The event data recorder — the truck's equivalent of a black box — captures speed, braking force, throttle position, and other inputs in the seconds before and during impact. This data is stored on the vehicle, and the carrier controls access to it. A spoliation letter from your attorney, sent within the first 48 hours, creates a legal obligation for the carrier to preserve all of these records. Without that letter, the evidence may be lost through routine business operations rather than intentional destruction.

Medical Attention and Injury Documentation

Commercial vehicle crashes tend to produce more severe injuries than passenger-car collisions due to the size and weight disparity. Even if you walked away from the scene, the forces involved may have caused internal injuries, spinal compression, or traumatic brain injury symptoms that emerge gradually.

Seek medical evaluation within 24 hours. Describe the type of vehicle that struck you — the treating physician's understanding that you were hit by a loaded tractor-trailer rather than a sedan may influence the diagnostic workup. Ask for imaging (X-ray, CT, MRI) of any area where you report symptoms, and request that the provider document the mechanism of injury as a commercial vehicle collision. This specificity matters when the claim reaches the insurer's desk. Begin a daily symptom journal covering pain levels, mobility limitations, sleep disruption, and cognitive difficulties. Track every medical appointment, prescription, and out-of-pocket expense in a dedicated file from day one.

Engaging Legal Counsel Early

Commercial vehicle accident claims involve layers of complexity — multiple defendants, federal regulations, corporate legal teams, and higher policy limits — that make early attorney involvement more valuable than in a standard car accident. Consult a lawyer within the first few days, ideally before speaking with any insurer.

An attorney experienced in trucking and commercial vehicle cases will take immediate steps that you cannot easily take on your own: sending the spoliation letter, filing public records requests with FMCSA for the carrier's safety history, and identifying all potentially liable parties from the corporate structure. They will also handle all communication with the carrier's insurer and defense counsel, shielding you from statements that could be used to reduce your claim. Most attorneys in this field work on contingency and charge nothing upfront. The initial consultation — typically free — gives you an assessment of your case's strength and a realistic picture of the process ahead.

This is general information, not legal advice. Consult a licensed attorney in your state. This is an independent information site, not a law firm.

Commercial vehicle crash procedures involve federal regulations and corporate defendants that add complexity beyond standard auto accident claims. These steps are starting points — consult an attorney experienced in trucking or fleet accident cases for guidance specific to your situation.