If you broker freight, your carrier-vetting checklist just became a legal document. After the Supreme Court's May 14, 2026 ruling in Montgomery v. Caribe Transport II, LLC, a broker can be sued for negligently selecting an unsafe carrier in all 50 states — and the record of how you vetted that carrier is the first thing a plaintiff's attorney will subpoena. The good news: the court effectively handed brokers a syllabus. The factors that decide a negligent-selection case are knowable, checkable, and the same on every load. This is the onboarding playbook that turns them into a repeatable standard operating procedure.

The shift matters because the old defense is gone. For years, brokers leaned on FAAAA preemption to get negligent-selection claims dismissed early. The Supreme Court closed that door, ruling unanimously that the FAAAA's safety exception lets these claims proceed (DLA Piper). What protects you now isn't a federal statute — it's evidence that you did your homework before the load moved. For the full legal background, see our breakdown of the Montgomery ruling.

What does "reasonable care" actually require when selecting a carrier?

Reasonable care is the legal standard a jury will measure you against, and it is not a vibe. It is a set of objective signals about a carrier's safety fitness that were available to you at the moment you tendered the load. A carrier with a problem record is not automatically off-limits — but choosing one without checking, or after seeing red flags and booking anyway, is exactly the conduct Montgomery now exposes. In the underlying case, the carrier held a Conditional FMCSA safety rating with documented deficiencies in driver qualification, hours of service, vehicle maintenance, and crash rate — all of it discoverable in public records before the load ever moved.

The lesson isn't "only book Satisfactory carriers." It's "check every signal, every time, and keep the receipt." Here is the checklist.

The 8-point carrier vetting checklist

Run every new carrier — and re-run every reactivated one — against these eight checks before tendering a load. Each maps to a fact a jury can later weigh.

• Operating authority — Confirm active, common/contract authority in the FMCSA SAFER system. Authority that is inactive, revoked, or less than 90 days old is a flag, not necessarily a stop.
• FMCSA safety rating — Pull the rating: Satisfactory, Conditional, Unsatisfactory, or Unrated. A Conditional rating is the exact fact pattern from Montgomery — bookable, but only with documented justification and extra scrutiny.
• Insurance verification — Verify active auto liability and cargo coverage directly with the certificate holder, not a forwarded PDF. Confirm limits meet the load's value and your contract's requirements.
• CSA / BASIC scores — Review the carrier's Safety Measurement System percentiles, especially Unsafe Driving, HOS Compliance, and Vehicle Maintenance. Scores above intervention thresholds demand a second look.
• Crash history — Check reportable crashes over the trailing 24 months relative to fleet size and mileage. A pattern matters more than a single event.
• Out-of-service rates — Compare the carrier's driver and vehicle out-of-service rates against national averages. Persistently high OOS rates are a documented safety signal.
• Driver qualification & authority age — Note fleet size, years in operation, and whether the operation looks stable or like a recently re-chartered shell. About 92% of motor carriers run 10 or fewer trucks (FreightWaves), so small isn't disqualifying — but unstable is a flag.
• Identity & fraud check — Confirm the carrier you're booking is the carrier that shows up: matching MC/DOT numbers, phone, and email domain, to screen out double-brokering and identity theft.

Document or it didn't happen

Running the checks is half the job. The other half is proving you ran them. Justice Kavanaugh's concurrence in Montgomery made the stakes explicit: brokers who perform due diligence, ask hard questions, and hire carriers with proven safety records "should still be able to defend these cases successfully" (Crowell & Moring). The flip side is just as clear — the absence of a vetting record reads, to a jury, as the absence of vetting.

That means every check above needs a timestamped artifact: what you pulled, when, what it said, and who approved the exception if the carrier was marginal. A vetting decision living in a salesperson's memory or a buried email thread is a vetting decision you cannot prove. For why the paper trail is now your best insurance, see Document or Defend. And if you're wondering how hard to scrutinize a borderline carrier, start with the Conditional-rating trap.

Old checklist vs. new checklist

The factors haven't changed much. The standard for documenting them has changed completely.

• Before: Vetting was a sales-speed formality — confirm authority and insurance, book the load, move on. Records were optional because preemption usually ended the lawsuit anyway.
• After: Vetting is a legal control. The same checks must be run consistently, applied to every carrier, and logged in a retrievable system — because the record is now the defense.
• Before: A Conditional-rated carrier was a pricing decision.
• After: A Conditional-rated carrier is a documentation decision: bookable, but only with a recorded, defensible justification.

Why consistency beats heroics

A vetting process is only as strong as its worst day. One rushed booking at 4:55 p.m. on a Friday — authority unchecked, insurance assumed, no record kept — is the load that ends up in a deposition. Plaintiffs' attorneys are already naming brokers alongside carriers precisely because brokers carry deeper coverage and a coordinating role, and trucking verdicts have climbed from an average of $2.3 million in 2010 to $22.3 million by 2018 (FleetOwner). The exposure is real, and it rewards operators who are boringly consistent.

That consistency is hard to sustain manually across hundreds of monthly bookings, which is where automation earns its keep. Debales deploys AI agents that handle carrier communications and load tendering end-to-end — and capture each safety check, insurance confirmation, and approval automatically as a clean, timestamped trail. The vetting standard the court now expects becomes the default path, not a discipline your team has to remember at 4:55 on a Friday. The diligence you can prove is the diligence that protects you.

Make the checklist the only way to book

The brokers who come out ahead won't be the ones who vet the hardest on their best carrier. They'll be the ones who vet the same way on every carrier and can show it. Wire these eight checks into your onboarding so a load can't move without them, log every result, and the next time a negligent-selection claim names your brokerage, your defense is already written.

See how Debales automates documented carrier vetting and load tendering across your carrier mix — so the new standard runs itself. Learn more at debales.ai.