15 Carrier Fraud Red Flags Every Broker Should Check Before Dispatching

You booked a carrier off a load board. Rate was competitive, dispatch confirmed, and the driver said he'd be at pickup in four hours. Then the truck never showed. Or worse — it showed, loaded your shipper's freight, and vanished. The carrier's phone is disconnected. The MC number belongs to a company in another state that never heard of the load. Your shipper is calling. Your insurance is calling. And after Montgomery, a plaintiff's attorney might be calling too.

Freight fraud costs the U.S. trucking industry between $500 million and $1 billion annually. Double-brokering, fictitious pickups, identity theft on MC numbers, and cargo theft operations all follow recognizable patterns. The 15 red flags below are what experienced broker operations teams, factoring underwriters, and fraud investigators check before tendering a single load. Each one is verifiable from free FMCSA data, MOTUS records, and standard public lookups.

1. Authority Less Than 90 Days Old

The overwhelming majority of carrier fraud happens in the first 90 days after an authority is issued. Scammers register a new USDOT, activate operating authority, book two to five loads, and disappear before FMCSA's new-entrant safety review catches up. A brand-new authority is not proof of fraud — every legitimate carrier starts at day one — but it is the single strongest predictor when combined with other flags on this list.

What to check:Pull the authority grant date from FMCSA SAFER. If it's under 90 days, do not stop your review here. Run every other flag below. If three or more additional flags hit, do not dispatch.

2. Zero BIPD Insurance on File

For-hire motor carriers must maintain public liability insurance (BIPD — Bodily Injury and Property Damage) of at least $750,000 for non-hazmat general freight. FMCSA's "insurance on file" field reflects active filings from the insurer, not the carrier's claim. A carrier showing $0 BIPD on file has no valid insurance filing with the federal government. There is no legitimate scenario where you should tender freight to this carrier.

What to check:Confirm the BIPD amount is at or above the $750K minimum. Also check whether cargo insurance is on file — not federally required for all carrier types, but its absence alongside zero BIPD is a hard stop.

3. Recently-Filed Insurance (Filed Same Week as Authority)

Insurance that was filed the same week the authority was granted is a timing signal. Legitimate carriers usually have insurance in place before or shortly after their authority application. When the insurance filing date and authority grant date are within days of each other — especially if the authority itself is under 90 days old — it matches the pattern of a shell authority being stood up quickly for short-term fraud. The insurance may be real, but the operation behind it may not be.

What to check: Compare the insurance effective date against the authority grant date. Same-week filings on a sub-90-day authority deserve extra scrutiny on every other flag.

4. Disposable or Free Webmail Email Domain

Hundreds of thousands of legitimate owner-operators use Gmail or Yahoo for dispatch. That alone is not a red flag. What is a red flag: disposable email domains— services like mailinator.com, guerrillamail.com, 10minutemail.com, or throwaway.email. These exist for one purpose: to be unreachable after the transaction. No operating carrier needs a self-destructing inbox.

A business domain (dispatch@smithtrucking.com) is a positive signal because it requires DNS maintenance, annual registration fees, and a stable address. Check whether the domain has valid MX records, proper SPF/DMARC authentication, and is more than a few months old. A brand-new domain paired with a brand-new USDOT is the classic shell-company setup.

What to check:Look up the email domain in MOTUS or the carrier's FMCSA contact record. If it's a known disposable provider, do not dispatch. If it's free webmail, weigh it against the other flags.

5. Phone Area Code Doesn't Match Registered State

A carrier registered in Tampa with a 213 (Los Angeles) area code could be an owner-operator who moved. Or it could be a pre-paid burner SIM bought in a different state from the registered shell address. On its own, this is a weak signal. Combined with a sub-90-day authority and free webmail, it completes the geographic-mismatch pattern that fraud investigators see repeatedly.

What to check:Cross-reference the phone area code against the carrier's registered physical address state. If they don't match, note it and keep checking.

6. Single Power Unit Claiming Multi-Truck Capacity

FMCSA's MCS-150 filing records the number of power units a carrier operates. A carrier with one power unit on filewho claims to have multiple trucks available, or who is bidding on volume lanes that require fleet capacity, is misrepresenting their operation. This is common in double-brokering schemes: the "carrier" accepts the load, then re-brokers it to an actual truck, pocketing the rate difference — or simply disappearing with the advance.

What to check:Confirm the power-unit count in the MCS-150 data. If the carrier claims capacity that doesn't match their filing, ask for specific truck numbers and driver names before dispatching.

7. MCS-150 Overdue by 12+ Months

Every motor carrier must update their MCS-150 biennial filing every two years. When the filing is overdue by 12 or more months, the fleet size, driver count, address, and contact information on file are stale. The carrier may have sold the business, moved, changed operations, or simply abandoned the authority. An overdue MCS-150 is not proof of fraud, but it signals a carrier that is not maintaining basic regulatory obligations — and the data you are using to vet them may be inaccurate.

What to check:Look at the MCS-150 filing date in SAFER. If it's more than 24 months past the last required update, treat all fleet and contact data as unreliable.

8. Unsatisfactory or Conditional Safety Rating

FMCSA issues three safety ratings after compliance reviews: Satisfactory, Conditional, and Unsatisfactory. An Unsatisfactory-rated carrier is barred from operating — dispatching to them is illegal. A Conditional rating means FMCSA found significant deficiencies and is monitoring the carrier. Many small carriers are simply "Not Rated" (no review has occurred), which is not a red flag by itself.

What to check: Confirm the safety rating in SAFER. Unsatisfactory = hard stop. Conditional = proceed only with extra due diligence on insurance, OOS rates, and crash history.

9. OOS Rate 1.5x+ the National Average

Out-of-service (OOS) rates measure how often a carrier's drivers or vehicles are pulled off the road during roadside inspections for safety violations. FMCSA publishes both the carrier's OOS rate and the current national average. A carrier whose driver or vehicle OOS rate is 1.5 times or more above the national average is being flagged at inspections far more often than the industry norm. This means inspectors are finding serious mechanical or driver-qualification issues regularly.

What to check:Compare the carrier's driver OOS% and vehicle OOS% against the national averages shown in SAFER. A rate 1.5x above average is a watch flag; 2x or above is a strong reason to decline the dispatch.

10. Multiple Crashes in 24 Months with Low Fleet Size

Context matters. A 500-truck fleet with three crashes in two years is operating within normal statistical range. A one-truck or two-truck carrier with three crashes in the same period has a catastrophic safety record. FMCSA reports the 24-month crash count alongside the fleet size. Divide crashes by power units to get a per-truck crash rate — and compare that against reasonable industry expectations.

What to check: Pull the 24-month crash count and power-unit count. If the ratio exceeds one crash per truck over two years, escalate the review. Post-Montgomery, this data point alone could establish you had constructive notice of the carrier's unsafe record.

11. Business Address Is a UPS Store or Virtual Mailbox

Commercial mail receiving agencies (CMRAs) — UPS Store, PostNet, iPostal1, virtual-office services — provide real street addresses that look like suite numbers. FMCSA requires a physical business address, not a mailing address. A carrier whose registered address resolves to a known CMRA location is not necessarily a scam, but it means there is no verifiable physical terminal, yard, or office. Combined with other flags, it supports the shell-company pattern.

What to check:Search the registered address. If it includes "Suite" or "Unit" at a location you can identify as a UPS Store, Regus, or virtual-mailbox provider, note it and weigh it against the full flag set.

12. No BOC-3 Process Agent on File

A BOC-3 filing designates process agents in every state where the carrier operates — the people authorized to accept legal documents on the carrier's behalf. It is a federal requirement for all for-hire carriers and brokers. A carrier with no BOC-3 on file has not completed a basic regulatory step that costs under $50 and takes minutes. Its absence signals either extreme carelessness or a carrier that was stood up quickly without intending to operate long-term.

What to check:Confirm BOC-3 status in SAFER. If it's missing, ask the carrier directly. If they don't know what a BOC-3 is, that tells you what you need to know.

13. Carrier Can't Provide Driver Name or Truck/Trailer Number

A legitimate carrier dispatching a truck to your load knows exactly which driver is going and what equipment they're sending. If the carrier cannot provide a driver name, CDL number, truck number, or trailer number before pickup — or gives vague answers like "I'll send it later" — they may not actually control the truck. This is the hallmark of double-brokering: the "carrier" accepted your load but is still shopping for a real truck to haul it.

What to check:Request driver name, CDL state and last four digits, truck number, and trailer number before confirming dispatch. Verify the truck number against the carrier's USDOT. If they stall, cancel.

14. Rate Acceptance Far Below Market Without Negotiation

When a carrier accepts a rate that is 20–30% below the current market rate on a given lane — instantly, with no negotiation — something is wrong. Legitimate carriers know their cost-per-mile. They negotiate. A scammer accepting a below-market rate doesn't care about the rate because they have no intention of hauling the freight themselves. They plan to either re-broker it at an even lower rate, steal the cargo, or collect a quick-pay advance and disappear.

What to check: Compare the accepted rate against DAT, Truckstop, or your internal lane data. If the carrier accepted without any pushback at a rate significantly below average, combine this with the other flags before confirming.

15. Refuses GPS/ELD Tracking Requirement

Most brokerages require carriers to share real-time GPS or ELD tracking on loads. Legitimate carriers running legally are already logging via ELD under the FMCSA mandate — sharing that data with a broker is trivial. A carrier who refuses tracking, claims their ELD "doesn't support" third-party sharing, or offers to "call in check calls instead" is avoiding the one tool that would expose their actual location and movement. In a double-brokering scheme, the carrier on your rate confirmation is not the carrier with the truck — they can't share tracking they don't have.

What to check: Make GPS/ELD tracking sharing a non-negotiable dispatch requirement. If the carrier refuses or cannot provide it, do not dispatch. No exceptions.

The Pattern That Matters

No single red flag on this list proves fraud. Plenty of legitimate owner-operators have new authorities, use Gmail, and operate a single truck. The skill of carrier vetting is reading the combinations. Here are the classic scam fingerprints that repeat across confirmed fraud cases:

• The Shell Authority: Sub-90-day authority + disposable or free webmail + phone mismatch + single power unit + same-week insurance filing. Five flags together. This is the fictitious-pickup playbook.
• The Double-Broker: Can't provide driver/truck details + accepts below-market rate instantly + refuses GPS tracking + single power unit claiming capacity. The "carrier" is a middleman reselling your load.
• The Identity Hijack: Authority is older and looks established, but the contact email, phone, and address have recently changed. Someone filed a change-of-address on a dormant MC number. Cross-check MOTUS contact history against what SAFER shows.
• The Safety Hazard: Conditional or Unsatisfactory rating + OOS rates 2x national average + multiple crashes with a small fleet + overdue MCS-150. This carrier is a lawsuit waiting to happen — and post-Montgomery, that lawsuit names you too.

How to Automate These Checks

Manually running 15 checks across SAFER, MOTUS, FMCSA APIs, and DNS lookups takes 20–30 minutes per carrier. On a busy dispatch desk processing dozens of carriers per day, that is not sustainable.

Our free carrier vetting tool runs all 15 of these flags on a single USDOT or MC number lookup. It pulls data from FMCSA SAFER, MOTUS, and public DNS records, then returns an A–F vetting grade with every flag spelled out, color-coded, and explained. No signup. No paid tier. No per-lookup fees. Unlimited use.

One entry, ten seconds, all 15 flags checked. Use it before every dispatch, or integrate it into your onboarding flow so no carrier gets into your system without a documented vetting score.

Vet a carrier now — free, unlimited →

Post-Montgomery: Why This Is Now a Legal Requirement

On May 14, 2026, the U.S. Supreme Court decided Montgomery v. Caribe Transport II, holding that freight brokers can be held liable for negligent selection of motor carriers. The decision resolved a circuit split that had protected brokers under FAAAA preemption for over a decade. The core holding: if a broker selects a carrier without reasonable due diligence and that carrier causes harm, the broker is not shielded from state-law negligence claims simply because they are a "broker" under federal law.

What does "reasonable due diligence" mean in practice? Courts will look at what data was available to the broker at the time of dispatch and whether the broker checked it. Every flag on this list is sourced from free, publicly available federal data. A plaintiff's attorney can show a jury that the carrier's Unsatisfactory rating, zero insurance, and 3x national-average OOS rate were all visible in SAFER — and that the broker dispatched anyway.

Documented vetting is now your legal defense. Every carrier you dispatch to should have a timestamped vetting record showing what you checked and what the data said at the time. Our carrier lookup tool generates a printable vetting report with every data point and grade. That report is your evidence of due diligence. For a deeper analysis of the ruling and what it means for your brokerage operations, see our Montgomery ruling breakdown.

Frequently Asked Questions

How many red flags should trigger a no-dispatch decision?

There is no universal threshold, but experienced broker ops teams generally treat three or more concurrent flags as a hard stop. A sub-90-day authority alone is fine. A sub-90-day authority plus disposable email plus phone mismatch plus no BOC-3 is a pattern, not a coincidence. Use the audit score tool to quantify the risk with a letter grade.

Does a carrier's vetting score change over time?

Yes. A carrier that was flagged at 30 days old with minimal data may look clean at 18 months with a full inspection history, updated MCS-150, and stable insurance record. Vetting is a point-in-time check. Re-vet carriers periodically, especially before dispatching high-value or sensitive freight. Our broker vetting checklist covers the recommended re-check cadence.

Can I rely on a load board's carrier verification instead of doing my own?

Load board verification programs (DAT Carrier Watch, Truckstop Assurance, etc.) are a useful first filter, but they are not a legal defense. Post-Montgomery, the question a court asks is what the broker knew or should have known. A load board badge does not transfer your duty of care. Run your own checks. Document them. The carrier lookup takes ten seconds and creates a record you control.

What is the difference between this page and the carrier/broker scam guide?

Our scam-spotting guide targets carriers and shippers who need to vet the entities they work with. This page targets brokers specifically — the party that selects and dispatches carriers, and the party now exposed to negligent-selection liability under Montgomery. The 15 flags here are the broker's pre-dispatch checklist. See also our guide on double-brokering scams for the most common scheme brokers encounter.

Is this vetting process required by FMCSA regulation?

FMCSA does not prescribe a specific carrier-vetting checklist for brokers. However, the agency's guidance and the post-Montgomery legal landscape both point in the same direction: brokers who dispatch without checking publicly available safety data are exposed. The standard of care is what a reasonable broker would do with the data that was freely accessible. Every item on this list is freely accessible. Document your diligence.

Every data point on this page comes from free, publicly available federal sources: FMCSA SAFER, MOTUS, and standard DNS records. We built the automated vetting tool because checking 15 flags manually on every carrier is not realistic for a busy dispatch desk — but the underlying checks are the same ones experienced broker ops teams have been running for years. If this page or the tool kept your brokerage out of a bad dispatch, tell another broker.