A recent Supreme Court ruling just rewrote the book on shipper risk.
On May 14, 2026, the United States Supreme Court issued a landmark decision in Montgomery vs Caribe Transport II, LLC, a transportation supreme court ruling that is already reshaping the freight industry.
While the case centers on broker liability, its ripple effects extend across brokers, carriers, and more critically… shippers. The ruling turns service selection into a shipper risk decision that is driving up costs, tightening capacity, and exposing your network to legal scrutiny.
Understanding what has changed and how to respond is essential for any shipper managing total cost of ownership and supply chain performance.
Case Background
The origins of Montgomery vs Caribe Transport II, LLC date back to a 2017 trucking accident in Illinois.
- Shawn Montgomery was stopped on the side of the highway when ar tractor-trailer struck his vehicle.
- The truck involved in the crash was operated by Caribe Transport II, LLC, a motor carrier with a known conditional safety rating and a history of compliance issues.
- The shipment had been arranged by a freight broker, C.H. Robinson, one of the largest 3PLs in the U.S.
Montgomery sued multiple parties, including the broker, alleging negligent hiring, and that the broker knew or should have known that the carrier was unsafe.
The Legal Question
At the center of the case was the primary question of:
Does the federal law (the Federal Aviation Administration Authorization Act, or FAAAA) shield brokers from state-level negligence claims?
For decades, brokers relied on the FAAAA’s federal preemption clause to argue they could not be held liable for carrier selection decisions. Some lower courts initially agreed, but the Supreme Court took the case to resolve conflicting interpretations across federal circuits.
What Did the Supreme Court Rule in Montgomery vs Caribe Transport II, LLC?
In a unanimous decision, the Supreme Court held that federal law does not preempt state-law negligent-hiring claims against freight brokers. This means brokers can no longer rely on federal preemption as a defense to such claims, and these cases may now proceed in state courts.
Key Takeaways from the Decision
- The FAAAA does not preempt negligent hiring claims against brokers.
- These claims fall within the law’s “safety exception,” which preserves states’ authority over motor vehicle safety.
- Selecting a carrier is considered an activity that “concerns motor vehicles”, because it directly impacts what trucks operate on public roads.
What Changed?
Before this ruling: Brokers often successfully dismissed claims using federal preemption.
After this ruling: The preemption defense is no longer available. State negligence lawsuits against brokers can proceed nationwide. At trial, freight brokers retain all other available defenses under state tort law – including that they acted reasonably in selecting a carrier – but this will increase the cost and burden of defending against such claims.
Implications for Brokers: Increased Liability & Risk
The most direct impact of this Supreme Court ruling falls on freight brokers and 3PL providers.
Increased Legal Exposure
- Brokers now face greater litigation risk for carrier selection decisions.
- Plaintiffs’ attorneys are expected to pursue more claims and more aggressively.
Market Impact
- Brokers may shift toward larger, more established carriers with strong safety records.
- Insurance costs, litigation costs, and operating expenses are likely to rise, resulting in higher cost-pressure across the entire supply chain, ultimately affecting end consumers.
- Depending on jurisdiction, certain carriers may choose not to operate on specific lanes due to higher litigation risks.
Bottom Line
Nearly one-third of all U.S. freight moves through freight brokers. Due to the likely increase of litigation defense costs, brokerage costs (and a large portion of the U.S. market) are likely to rise.
Implications for Carriers: Safety Becomes Premium
Carriers will also feel the downstream effects of Montgomery vs Caribe Transport II, LLC.
Safety Becomes a Competitive Differentiator
- FMCSA scores, inspection data, and compliance records may directly impact freight access.
- Carriers with poor safety histories may lose broker partnerships quickly.
Increased Scrutiny
- Brokers may become more selective, favoring:
- Strong safety ratingsClean inspection histories
- Higher insurance coverage
Market Dynamics
- Higher-quality carriers may command premium rates due to increased demand.
- Smaller or marginal carriers may face capacity access challenges.
- Higher insurance costs may increase the barrier to entry for new carriers in the market and further tighten capacity.
Bottom Line
Small to mid-sized carriers are at risk of losing brokerage partnerships quickly and could face capacity challenges. The market will likely become more selective and favor larger carriers with higher safety standards, which will in turn command premium rates that cascade down the value chain.
What it Means for Shippers
While shippers are not the direct target of this ruling, the impact is significant and immediate.
Higher Transportation Costs
- Increased broker due diligence, paired with higher insurance and litigation costs will equate to rising freight costs.
- Premium carriers become more expensive due to demand.
Capacity Shifts
- Brokers prioritizing “safe” carriers may reduce available capacity.
- Tightening capacity can impact:
- Service levels
- Lead times
- Network flexibility
Compliance Expectations Rise
Shippers must now:
- Align with partners that demonstrate strong compliance and vetting practices.
- Ensure contracts reflect risk mitigation standards.
- Evaluate whether their brokers are truly managing carrier risk—not just sourcing capacity.
Bottom Line
While shippers are not the primary target of this ruling, the impacts will resonate throughout the entire value chain. Shippers may face capacity shifts and rate increases due to the market demanding “safe” carrier options with more strict diligence. Shippers should align with partners that demonstrate strong compliance and carrier vetting practices.
Why Shippers Are Turning to KBX
In the wake of the Supreme Court ruling, who you choose to partner with matters more than ever before. In a post-Montgomery vs Caribe Transport II, LLC environment, shipper risk is directly tied to how brokers vet and monitor carriers.
KBX helps mitigate carrier risks through:
- Enterprise-grade carrier vetting: Multi-step onboarding including safety scores, compliance history, and fraud prevention. Learn more about our comprehensive carrier requirements here.
- Ongoing monitoring: Ongoing review of FMCSA data, insurance coverage, and operational performance.
- Scale with quality: Access to a large, pre-vetted carrier network without compromising safety standards.
- Audit-ready processes: Documented due diligence.
For shippers, this results in more reliable services, and confidence that your transportation network can withstand disruptions under increased scrutiny.
Safety is no longer just operational. It’s legal, financial, and strategic.
Those who proactively adapt will be best positioned to protect their supply chain and remain competitive in the new environment.
DISCLAIMER: This bulletin is provided for general informational purposes only and does not constitute legal advice. The discussion of the Supreme Court’s decision in Montgomery v. Caribe Transport II, LLC is a summary only and should not be relied upon as a complete or authoritative legal analysis. KBX Logistics, LLC makes no representations or warranties regarding the legal implications of this decision for any particular shipper, broker, or carrier. Shippers are encouraged to consult their own legal counsel regarding their specific circumstances. Descriptions of KBX’s services and practices are general in nature and are subject to the terms and conditions of applicable service agreements.