Before May 14, 2026, most auto transport customers had never heard the phrase "conditional safety rating."
After the Supreme Court's unanimous decision in Montgomery v. Caribe Transport II, LLC, it became one of the most consequential terms in the entire industry. A carrier's conditional safety rating was at the center of a case that went all the way to the highest court in the country — and changed the legal landscape for every broker operating today.
Here is what it actually means. In plain language. No legal jargon.
For the full story on the ruling and what it means for your shipment — read: Why Auto Transport Costs More in 2026 — And What the Supreme Court Has to Do With It
The Three Ratings Every Carrier Gets
The FMCSA rates every commercial carrier in the country after a compliance review — an on-site examination of their operations, driver records, maintenance logs, hours-of-service compliance, drug testing procedures, and accident history.
Every carrier gets one of three ratings:
Satisfactory — The carrier has functioning and adequate safety management controls. This is the baseline. It means the federal government reviewed their operations and found them in compliance with safety standards. This is the rating any responsible broker should require before dispatching.
Conditional — The carrier does not have adequate safety management controls in place. Not a suggestion. A documented finding of systemic noncompliance. The FMCSA formally identified deficiencies in at least one area of their operations — and put it in writing.
Unsatisfactory — The carrier does not have adequate safety management controls and those deficiencies have already resulted in safety violations. An unsatisfactory carrier is typically ordered to cease operations within 45-60 days unless they correct the issues and receive FMCSA approval.
The Part That Should Concern You Most
A conditional carrier can still legally put trucks on the road. They have not been shut down.
This is the detail that matters most and the one most customers never know until something goes wrong.
A conditional rating does not ground a carrier. It means the FMCSA found documented problems — real, formal, written problems — but has not yet escalated them to shutdown level. The carrier is operating under a clock. They are required to correct the deficiencies and document their corrective action plan. Until FMCSA determines those corrections are effective, they remain conditional.
And they remain on the road.
What Triggers a Conditional Rating
FMCSA evaluates carriers across six areas during a compliance review. A deficiency in any single area can produce a conditional rating. The most common violations that lead to conditional ratings include:
Driver Qualification Failures — Incomplete or missing driver qualification files, expired medical certifications, or licensing violations. The carrier is putting drivers on the road without the required documentation confirming those drivers are qualified to operate a commercial vehicle.
Hours of Service Violations — Log falsification, incomplete duty status records, or patterns of drivers operating beyond legal limits. Fatigued driving is one of the leading causes of commercial vehicle accidents.
Vehicle Maintenance Deficiencies — Failure to systematically inspect, repair, and maintain vehicles. Brake system violations are among the most serious in this category.
Unsafe Driving Patterns — Speeding violations, cargo securement failures, and distracted driving patterns feeding into the Unsafe Driving BASIC score. I weight distracted driving history heavily in my own vetting — it is in my assessment the most likely cause of a serious accident in modern commercial transport.
Drug and Alcohol Testing Failures — Pre-employment testing violations or gaps in the carrier's ongoing testing program.
Crash History — A crash rate that exceeds industry benchmarks relative to miles driven.
A conditional rating could reflect one very serious incident or several smaller incidents creating an unsafe trend. Either way the federal government has formally documented that this carrier's safety management is inadequate.
Why This Became a Supreme Court Case
In Montgomery v. Caribe Transport II, LLC, freight broker C.H. Robinson dispatched Caribe Transport — a carrier with a documented conditional safety rating — on a load through Illinois. Caribe Transport's driver veered off course and struck Shawn Montgomery, who was stopped on the shoulder. Montgomery lost his leg.
Montgomery's attorneys argued that C.H. Robinson knew or should have known about Caribe Transport's conditional rating and documented safety deficiencies. That rating is public information — available to anyone in sixty seconds at safer.fmcsa.dot.gov. The argument was that choosing to dispatch that carrier anyway constituted negligent hiring.
The Supreme Court agreed. Nine to zero.
The ruling established that brokers can be held liable under state negligence law for failing to exercise reasonable care in selecting carriers. Dispatching a conditional-rated carrier without reviewing the totality of their record is now a documented path to that liability.
How We Handle Conditional Carriers
I want to be direct about something: a conditional rating does not automatically disqualify a carrier from working with us. What it triggers is a deeper review.
The question I ask is not just whether they are conditional — it is why they are conditional and which direction they are trending.
A carrier who received a conditional rating six months ago for an incomplete driver qualification file, has since corrected it, filed their corrective action plan, and shows a clean inspection history since then is a different risk profile than a carrier with a conditional rating driven by distracted driving violations, a recent crash, and no documented corrective action.
I review the totality of the circumstances. The BASIC scores, the specific violations, the trend line, the corrective action history. That review takes longer than a two-minute authority check. It is why I am almost never the cheapest quote you receive.
Your vehicle is on that carrier's trailer. The conditional rating stays on the road with it until FMCSA acts. The least I can do is know exactly what I am dispatching before your car leaves the driveway.