How to Vet a Carrier: A Step-by-Step Playbook for Brokers and Shippers
A bad carrier can cost you a load, an insurance claim, a customer, or a lawsuit. A few minutes of vetting before you dispatch can prevent all four. This is the eight-step playbook FleetSight recommends for every new carrier — and the quick re-check we recommend for repeat carriers before each load.
Why Vetting Still Fails
Most brokers know to check authority and insurance. The problem is that the checks usually stop there. Fraud rings know exactly which boxes you tick. They register clean authority, file a current COI, and pass the surface inspection. Two weeks later the load is gone and the phone is dead.
Real vetting goes deeper. It looks at history, identity, network connections, and behavioral signals — not just current status. The eight steps below cover all four.
The 8-Step Vetting Playbook
1Verify FMCSA Authority
Pull the carrier's FMCSA record by USDOT or MC number. Confirm authority is ACTIVE (not pending, revoked, or out-of-service), confirm the entity type matches the work (motor carrier vs broker vs freight forwarder), and verify the operating status date. Anything granted in the last 90 days deserves extra scrutiny.
2Confirm Insurance on File
Check that primary auto liability is current and meets your minimum (typically $1M for general freight, $5M for hazmat). Cross-reference the insurer name and policy number against the COI the carrier sends you. A current FMCSA filing is good. A current FMCSA filing that matches an independently-fetched COI is better.
3Pull the Safety Snapshot
Look at the carrier's BASIC scores, out-of-service rates, and crash counts. A small carrier with two crashes in 12 months is statistically very different from a 500-truck fleet with two crashes. Normalize for fleet size before drawing conclusions.
4Walk the Inspection History
Inspections are the highest-frequency truth signal you have on a carrier. Look for trends, not totals: a rising OOS rate, repeated brake or hours-of-service violations, or inspections concentrated in one corridor. A clean inspection from this month carries more weight than ten clean inspections from three years ago.
5Run Identity Checks on Principals
Get the names of officers and principals from the carrier's MCS-150 filing. Search for those names against OFAC sanctions, SAM.gov exclusions, federal court records, and any prior carriers they have been associated with. A principal who shows up on three closed carriers in five years is a chameleon signal.
6Check the Address and Network
Geocode the physical address. A residential address, a UPS Store, or a virtual office is not a disqualifier on its own — but it is when combined with a small fleet size, a brand-new authority, and a carrier name that sounds generic. Cross-check the address against other carriers; a single address with multiple authorities is one of the strongest fraud signals there is.
7Look for Chameleon Signals
A chameleon carrier is one that re-registered after being shut down, to shed crash history or OOS orders. Check whether the principals, addresses, phone numbers, or VINs on this carrier match a recently closed entity. FleetSight automates this with 7 chameleon signals — but you can run a manual version with FMCSA data alone.
8Document Everything
When you onboard a carrier, snapshot every check you ran: authority status, COI, safety scores, principal lookups, address verification. If there is ever a claim or audit, this is the file your attorney will ask for. A vetting process you cannot prove you ran is a vetting process you might as well not have run.
What to Do When Something Looks Off
Vetting catches problems. The next question is what you do when you find one. Our recommendation: rank findings into three buckets.
- Hard stop. Authority is not active, insurance is lapsed, the carrier appears on OFAC, or the address is shared with three other carriers. Do not load. There is nothing to discuss.
- Conditional. The carrier is technically eligible but has elevated signals — a recent authority change, a single chameleon signal, an OOS rate above the national average. Approve for low-value or low-liability loads only, and recheck before each tender.
- Clear. All eight steps pass cleanly. Document the check, set a re-vet date (we recommend 90 days), and dispatch.
The Re-Vet Cadence
Vetting once at onboarding is not enough. A carrier that was clean in January can be out-of-service in June. Insurance lapses. Authority gets revoked. Crashes happen. Build a re-vet cadence into your process — at minimum, before any high-value or hazmat tender, and on a recurring 30-to-90-day schedule for repeat carriers.
FleetSight surfaces these changes automatically when you save a carrier to your watchlist — but the discipline matters more than the tool. Build the cadence first.
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