How Carrier Safety Ratings Work, and How to Read One
A trucking company’s safety rating is public, free to look up, and almost universally misunderstood by the people it exists to protect. The most common mistake is assuming that no rating means a good rating. It does not. It usually means the company has never been through the review that produces one.
Here is what the ratings actually are, what the underlying data shows, and how to use both in about five minutes.
The Three Ratings, and the Fourth Case
The Federal Motor Carrier Safety Administration issues three safety ratings following a compliance review, which is an on site audit of a carrier’s records and operations.
Satisfactory means the carrier passed the audit. Conditional means deficiencies were found that could lead to violations, but not enough to stop operations. Unsatisfactory means the carrier is prohibited from operating in interstate commerce, which in practice ends the business.
The fourth case is the important one: unrated, or “none”. A very large share of active carriers have no rating at all, simply because a compliance review is resource intensive and most carriers have never had one. An unrated carrier may be excellent or may be poor. The rating field tells you nothing either way, which is precisely why you have to look at the data underneath it.
The Data Underneath
Separately from ratings, FMCSA collects roadside inspection and crash data on every carrier and groups it into categories covering unsafe driving, hours of service compliance, driver qualification, vehicle maintenance, controlled substances, hazardous materials and crash history.
Carriers are scored within each category relative to others of a similar size, and those that exceed a threshold are prioritized for intervention. Some of this is publicly visible and some is not, which has been the subject of a long running argument about transparency.
What you can see is enough. The inspection count, the out of service rate for both vehicles and drivers, and the crash count over the past two years give a usable picture. The out of service rate is the single most informative number: it is the proportion of inspections that found something serious enough to stop the truck or the driver on the spot.
How to Read It in Five Minutes
Get the USDOT number and look the company up in the FMCSA public database. Then read four things in order.
First, is the operating authority active? Not pending, not revoked. Second, is insurance on file and current? A lapsed filing means the company cannot legally operate that day regardless of anything else.
Third, what is the out of service rate against the national average? A rate meaningfully above average across a decent number of inspections is a real signal. A rate of 100 percent across two inspections is noise.
Fourth, look at the volume of inspections against the fleet size. Twelve inspections on a two truck operation over two years is normal. Two inspections on a forty truck fleet suggests the record is thinner than the operation, which is worth a question.
What the Ratings Do Not Tell You
Three limits are worth being honest about.
Ratings can be years old. A satisfactory rating from a compliance review conducted six years ago describes the company as it was then, not necessarily as it is now.
The data is inspection driven, so a carrier that runs routes with less enforcement activity accumulates a thinner record than one running the same standard of operation through heavily inspected states. Thin records are hard to read in either direction.
And none of it addresses damage claims, which is what actually concerns most customers. A carrier can have a clean safety record and still handle vehicles carelessly, because loading damage is not a roadside inspection item. Safety data tells you about the operation of the truck, not about the care taken with what is on it.
One more reading trap: a carrier showing zero crashes is not necessarily safer than one showing two. Crash counts are raw and do not distinguish fault, so a carrier rear ended twice at a stoplight carries the same two crashes as one that caused them. FMCSA has run a process for determining preventability on certain crash types, but not every crash is reviewed. Read the crash count alongside the inspection and out of service data rather than on its own.
Where This Fits in Booking a Move
For an individual vehicle move, a broker selects the carrier, so the vetting happens there rather than at your end. That does not make the check useless, it changes who should be doing it.
Ask whether the company verifies authority, insurance and safety data before dispatch, and whether it will tell you which carrier is assigned before the vehicle is collected. If it will, you can run the five minute check yourself on the actual truck coming to your house. If it will not, that is worth weighing.
A related pattern worth knowing is the carrier that abandons a poor record by re registering under a new name, covered in our page on chameleon carriers. And our guide to FMCSA and USDOT numbers explains each field in the record.
Common Questions
What are the safety ratings? Satisfactory, conditional and unsatisfactory, issued after a compliance review. Most carriers are unrated because they have never had one.
Is unrated bad? No, and it is not good either. It means no audit has taken place, so you have to read the inspection and crash data instead.
What is the most useful single number? The out of service rate compared with the national average, provided there are enough inspections for it to mean anything.
Does a good safety record mean my car will not be damaged? No. Loading damage is not a roadside inspection item, so safety data does not measure it.
Can I check the carrier before it collects my car? Only if the company tells you which carrier is assigned. It is a fair thing to ask for.
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