Delivery Truck Accidents: What Evidence Matters

Delivery trucks that meet certain weight thresholds are classified as commercial motor vehicles and fall under FMCSA (Federal Motor Carrier Safety Administration) regulations. The most critical rule for crash litigation is the hours-of-service requirement: federal law limits a driver to 11 hours of operation per 14-hour window, with a mandatory 10-hour off-duty rest period. If the crash happened in hour 12 or 13, that's a federal violation and it strengthens a negligence claim considerably.

Many delivery trucks are also fitted with electronic logging devices (ELDs) that automatically record driving time, location, speed, and hard-braking events. Unlike handwritten logs, ELD data is precise and tamper-evident. That data is gold in litigation. You can see exactly when the driver started, when they should have stopped for rest, and what happened in the moments before impact.

The driver must also maintain a valid DOT medical certificate. If the driver was operating on an expired or fraudulently obtained certificate, that's another independent negligence violation. The driver's qualification file, kept by the carrier, includes all certifications and any disqualifying medical conditions. Request it immediately.

A loaded delivery truck can weigh 80,000 pounds. A passenger car weighs roughly 4,000 pounds. That 20:1 weight ratio fundamentally changes the dynamics of the crash. A delivery truck traveling at 35 miles per hour has roughly the same kinetic energy as a passenger vehicle traveling at 150 miles per hour. The injuries are often catastrophic.

In legal terms, this weight disparity creates a doctrine called the 'heavy vehicle presumption' in some jurisdictions. The defendant (the delivery company) has a harder time arguing that the passenger vehicle occupants were even partially at fault. The physics tell a story: the truck's weight and momentum overwhelm smaller vehicles.

This is also why delivery truck maintenance matters so much. A truck with failing brakes cannot decelerate as quickly as a properly maintained vehicle. Worn tires cannot grip the road in wet conditions. Defective steering can cause loss of control. The carrier is legally required to maintain the vehicle in safe condition. [NHTSA publishes crash data by vehicle type](https://www.nhtsa.gov/) that shows the injury and fatality rates for large truck crashes—data you can cite to show the inherent danger.

The moment a delivery truck accident occurs, a legal clock starts ticking. Many trucking carriers have policies that allow them to purge ELD data, dash cam footage, and dispatch records after 15, 30, or 90 days. Without a preservation letter, that evidence disappears legally and becomes inadmissible in court—even if it exists somewhere in the company's servers.

A preservation letter, sent by an attorney immediately after the crash, imposes a legal duty to retain all relevant evidence. It stops the deletion clock and creates a spoliation claim if the carrier destroys evidence after receiving notice. That's enormous leverage.

Specific evidence to demand in the preservation letter includes: the driver's ELD data for 30 days before and after the crash; all dash cam and in-cab camera footage; maintenance records for the past 12 months; dispatch communications and trip history; the driver's hours-of-service records; the driver's qualification file and medical certifications; post-crash drug screen results; any internal incident reports or photographs taken at the scene; and the vehicle's CSA (Compliance, Safety, and Accountability) score history. [FMCSA regulations specify record-keeping and retention requirements](https://www.fmcsa.dot.gov/). Don't wait for the insurance adjuster to ask for this. Make the demand yourself.

A common mistake is assuming the driver is the only defendant. In delivery operations, liability can be spread across multiple parties, and each may have insurance.

The motor carrier (the delivery company) is liable under vicarious liability for the driver's negligence. But the carrier can also be directly negligent: hiring an unqualified driver, failing to maintain the vehicle, failing to enforce hours-of-service compliance, or approving unrealistic delivery schedules that incentivize speeding or skipping mandatory breaks.

The shipper or loader may also be liable if they over-loaded the truck beyond its weight rating (GVWR—Gross Vehicle Weight Rating) or loaded cargo improperly, causing handling or braking issues. Violations of weight standards give rise to independent negligence claims.

The broker, if the shipment was brokered, can be liable for hiring a carrier with a poor safety record. The trailer owner can be liable for failing to maintain brakes or tires. The third-party maintenance facility can be liable if recent work was performed negligently.

Identifying all responsible parties early expands the scope of insurance coverage and increases settlement value.

First: call 911 and get to safety. Document the scene with photos and video from multiple angles if you're physically able.

Second: exchange information with the driver, note the carrier name and USDOT number (displayed on the truck), and get contact details for any witnesses. Note the vehicle's license plate, the truck's identification number (VIN), and take photos of the cargo placards if visible.

Third: do not give a recorded statement to the trucking company's insurance adjuster without speaking to an attorney first. Anything you say can and will be used against you. Do not sign any document the adjuster presents.

Fourth: seek medical evaluation immediately, even if you feel fine. Injuries from truck accidents can be delayed. Get a complete medical record documenting the exam and any injuries found.

Fifth: consult an attorney who specializes in commercial truck accident cases within days, not weeks. Time is critical for evidence preservation. A lawyer can send the preservation letter, issue discovery demands, and begin building the liability case before the statute of limitations runs or evidence is destroyed.

Don't attempt to negotiate or settle on your own. These cases are complex and the damages often run into six or seven figures.