The Supreme Court’s unanimous ruling in Montgomery v. Caribe Transport II did not create carrier vetting liability for dispatchers — it confirmed that it already existed and removed the legal shield brokers and intermediaries had been counting on. For independent dispatchers, the implication is direct: every carrier you activate is a carrier you are implicitly endorsing to a shipper. If that carrier has a dangerous safety record, an unqualified driver, or a lapsed insurance policy, your role in the chain is visible. This process eliminates the gaps that create exposure and builds a carrier file that holds up under the scrutiny of a post-accident review.
Step 1: The FMCSA SaferWeb Audit
Start every carrier onboard at FMCSA’s Safety Measurement System. Enter the carrier’s DOT number and review five things before touching anything else: (1) Safety Rating — reject any carrier rated Unsatisfactory outright; (2) Operating Authority Status — confirm it is Active, not Revoked or Suspended; (3) Out-of-Service Order history — a recent OOS is a red flag even if currently lifted; (4) BASIC percentile scores — flag any score above 65 in Unsafe Driving, Crash Indicator, HOS Compliance, Vehicle Maintenance, or Driver Fitness; and (5) Number of inspections in the past 24 months — a carrier with fewer than 3 inspections on a fleet of 5+ trucks has inadequate visibility in the data, which is itself a risk flag. FMCSA’s SMS methodology documentation explains exactly how each BASIC is weighted and what percentile thresholds trigger intervention.
Step 2: Insurance Verification That Actually Works
Requesting a certificate of insurance is table stakes — what matters is verifying that the certificate is current and structured correctly. Call the carrier’s insurance agent directly to confirm the policy is active; certificates can be issued for policies that have since lapsed. Federal minimums are $750,000 for general freight and $1,000,000 for hazardous materials, but many shippers and brokers require $1,000,000 for all loads — confirm the requirement for each shipper lane before assigning a carrier. The FMCSA Licensing and Insurance portal provides real-time insurance filing data for carriers; cross-reference the certificate you receive against the portal data. If the portal shows a pending cancellation or a gap in coverage, reject the carrier until it is resolved. Also verify that cargo insurance is in place if you are moving high-value freight — primary liability does not cover cargo loss.
Step 3: Drug and Alcohol Clearinghouse Query
The FMCSA Drug and Alcohol Clearinghouse is mandatory for employers conducting pre-employment queries, but as a dispatcher — not a formal employer — your access pathway is different. You can request that the carrier provide evidence of compliant Clearinghouse registration and that their drivers have been queried through the system. Ask specifically: Is the carrier registered in the Clearinghouse? Have all CDL drivers been through a pre-employment Clearinghouse query? Is there a documented Return-to-Duty process for any driver with a prior violation? A carrier that cannot answer these questions has a compliance gap. Note that following FMCSA’s Clearinghouse Identity Verification update (which went live with IDEMIA biometrics in April 2026), carriers with unverified accounts face query lockouts — verify the carrier has completed the biometric verification step before relying on their Clearinghouse status.
“The dispatcher who onboards a carrier without completing proper vetting is not just taking a safety risk — they are creating a documented paper trail of negligence that plaintiff attorneys will use in the event of a serious crash.”
Jackson Lewis, Carrier Compliance Advisory, 2026
Step 4: Building the Carrier Packet and Keeping It Current
A carrier packet is not just an onboarding form — it is your liability file. At minimum, every activated carrier should have on file: (1) signed carrier-broker or carrier-dispatcher agreement with liability and indemnification language; (2) current COI with your operation listed as certificate holder or additional insured as required; (3) copy of MC authority and DOT registration; (4) W-9 for payment processing; (5) CDL copies for any drivers regularly assigned to your freight; (6) signed acknowledgment of your load booking terms, detention policy, and lumper authorization procedure; and (7) your SaferWeb pull date and BASIC scores at onboarding. The onboarding date is the legal timestamp that matters in litigation — document it explicitly.
- Run SaferWeb before every new carrier activation, not just annually. A carrier’s safety rating can change on a rolling 24-month window — a carrier you vetted 8 months ago may have new violations.
- Verify insurance directly with the agent, not just the certificate. Call the number on the certificate and ask the agent to confirm the policy is active and the limits match what is on file.
- Check the FMCSA L&I portal for real-time insurance data. Cross-reference the certificate against the portal before the first load dispatch.
- Ask carriers about their Clearinghouse biometric verification status. Post-April 2026, carriers without completed IDEMIA verification may face query delays or lockouts.
- Pull CDL copies for any driver repeatedly assigned to your freight. For non-domiciled CDL holders, verify the I-94 documentation and set a renewal reminder for 90 days before expiration.
- Date and document every verification step in your carrier file. The timestamp is your evidence of due diligence if a load ends in litigation.
- Review high-volume carrier files quarterly. Insurance lapses, authority suspensions, and safety rating downgrades happen between dispatches — a quarterly audit catches problems before they become your problem.
The Bigger Picture: Carrier Vetting as a Competitive Advantage
In a market where the Supreme Court has signaled that the FAAAA preemption shield no longer protects intermediaries from negligent hiring claims, the dispatchers who build rigorous vetting practices are not just protecting themselves legally — they are building a shipper-facing competitive advantage. Shippers are increasingly asking dispatchers and small 3PLs to document their carrier qualification processes as part of preferred-provider agreements. A dispatcher who can show a timestamped, documented vetting file for every activated carrier is a dispatcher who gets the contract over one who cannot. Build the process once, run it consistently on every carrier, and document everything. The cost of the discipline is an hour of setup; the cost of skipping it can be the entire operation.
