Is the motor carrier liable for the driver's negligence?

Almost always, on authorized loads. The FMCSA's leased-equipment rule (49 C.F.R. § 376.12) makes the motor carrier whose authority is being used responsible for the driver, including drivers leased from owner-operators. Independent-contractor classifications do not defeat this.

Can a broker be liable for picking a bad carrier?

Yes — negligent selection or negligent hiring of the motor carrier. Brokers who used a carrier with a deficient FMCSA safety rating, expired insurance, or recent fatality history have been held liable. The Federal Aviation Administration Authorization Act preemption defense has been narrowed by recent circuit decisions.

What about the shipper or cargo loader?

Shippers are liable when they negligently loaded the trailer (overweight, unbalanced, improperly secured) and the loading contributed to the crash. The driver's responsibility to refuse an unsafe load does not eliminate shipper liability when defects were latent or the driver did not have access to the load.

Guide

Who is liable in a truck accident?

A truck case is rarely a one-defendant case. Federal regulations open the door to motor carriers, brokers, shippers, and maintenance vendors — each with their own coverage to contribute.

The driver

Direct liability for the driver's negligence — failure to maintain lane, speeding, hours-of-service violation, distracted driving. The driver is rarely a meaningful collection target individually; the value of suing the driver is procedural (jurisdiction, joinder, discovery).

The motor carrier

Liability flows to the carrier whose USDOT authority is being used. Under the leased-equipment rule (49 C.F.R. § 376.12), the placarded carrier is responsible for the driver and equipment for the duration of the load — independent contractor status notwithstanding. Theories include vicarious liability (respondeat superior), negligent hiring and supervision, negligent retention, and negligent maintenance.

The broker

Freight brokers can be liable for negligent selection of an unsafe motor carrier. Evidence: FMCSA Safety Measurement System scores, prior crash history, expired insurance, inadequate safety rating. Courts have rejected sweeping FAAAA preemption defenses; Miller v. C.H. Robinson (9th Cir. 2020) is a leading decision allowing the theory to proceed.

The shipper and cargo loader

Shipper liability arises when (1) the shipper loaded the trailer, (2) the loading was negligent — overweight, unbalanced, unsecured, improperly distributed — and (3) the loading contributed to the crash. The driver's independent duty to inspect does not eliminate shipper liability for latent defects or sealed-trailer loads.

The maintenance vendor

Brake failures, tire failures, and lighting failures trace back to the maintenance vendor when the work was negligent or the inspection missed defects. The maintenance record (DVIR — driver vehicle inspection report) is the entry point.

The trailer owner

When the trailer is leased separately from the tractor, the trailer owner may have independent maintenance and inspection duties. This expands available defendants on equipment-failure cases.

Sequence of pursuit

Practically: the carrier is named immediately. Broker and shipper claims add after discovery into the load tender and the carrier's safety profile. Maintenance and equipment vendors add after the DVIR, ECM download, and any post-crash inspection are reviewed. Each addition can bring new coverage into the pool.

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Frequently asked questions

Sources

[1]Leased Equipment Rule, 49 C.F.R. § 376.12 — U.S. Code of Federal Regulations
[2]FMCSA Safety Measurement System — U.S. Federal Motor Carrier Safety Administration
[3]Miller v. C.H. Robinson Worldwide, Inc. (9th Cir.) — United States Court of Appeals for the Ninth Circuit