How Freight Brokers Can Vet Motor Carriers and Build a Defensible Carrier Selection Process

Choosing a motor carrier is no longer just a capacity decision. It is a risk-management decision that could later be examined by a shipper, insurer, attorney, judge, or jury.

A carrier may have active operating authority and an insurance certificate but still present significant safety, operational, financial, or fraud-related risks. If a serious crash occurs, the broker may be asked to explain what it knew about the carrier, what information it reviewed, when the review occurred, and why the carrier was approved for that particular load.

That exposure became even more important after the U.S. Supreme Court’s May 14, 2026, decision in Montgomery v. Caribe Transport II, LLC. The Court held that a negligent-hiring claim involving a broker’s selection of a motor carrier was not preempted by the Federal Aviation Administration Authorization Act because the claim fell within the law’s motor-vehicle safety exception. The decision does not automatically make a broker liable for every carrier accident, but it allows certain negligent-selection claims to proceed under state law.

For freight brokers, the lesson is clear: carrier vetting must be consistent, current, proportional to the risk of the load, and thoroughly documented.

Carrier Vetting Is More Than Checking Authority and Insurance

Many carrier onboarding processes focus on two questions:

• Does the carrier have active operating authority?
• Does the carrier have an insurance certificate?

Those are important questions, but they only establish a minimum eligibility floor. They do not provide a complete picture of the carrier’s identity, safety performance, claims history, insurance structure, operational capacity, or changing risk profile.

A defensible process should evaluate the carrier and the load together. The same carrier may present a manageable risk for routine freight on a familiar lane but require greater scrutiny before hauling hazardous materials, high-value cargo, time-sensitive freight, or loads through dense metropolitan areas.

The objective is not to guarantee that an accident will never happen. No vetting system can do that. The objective is to demonstrate that the brokerage used a reasonable, consistent, and documented process when selecting the carrier.

How Should a Freight Broker Vet a Motor Carrier?

A strong carrier vetting protocol should include the following steps.

1. Confirm the Carrier’s Identity

Before trusting any safety, insurance, or operating information, confirm that the company communicating with your brokerage is the company described in the federal records.

Review and compare:

• Legal business name
• DBA or trade name
• USDOT number
• MC number
• FMCSA-registered address
• FMCSA-registered telephone number
• Company email domain
• W-9 information
• Insurance information
• Ownership or officer information
• Payment and banking instructions

Use an independently verified contact method when possible. Do not rely entirely on the telephone number or email address provided by the person responding to a load posting.

Unexpected changes in addresses, contacts, ownership, equipment, insurance, or payment information may require additional review. Identity inconsistencies can be warning signs of impersonation, double brokering, account takeover, or a chameleon carrier operating under another authority.

If the brokerage cannot confidently establish who the carrier is, the process should stop until the discrepancy is resolved.

2. Verify Operating Authority and Status Using Current Records

Carrier authority should be checked using live or current federal records—not an old screenshot or a carrier packet completed months ago.

Confirm:

• Operating authority is active for the transportation being arranged
• The carrier is not subject to a federal out-of-service order
• The USDOT and MC numbers match the carrier’s legal identity
• The carrier’s operation classification and cargo classifications are consistent with the load
• Required financial responsibility filings are active
• The carrier’s MCS-150 information is current
• The carrier is authorized to perform the work being assigned

Hard stops should be clearly defined in the brokerage’s written carrier-selection policy. Sales pressure, a late load, or a longstanding relationship should not allow an unauthorized or out-of-service carrier to bypass an eligibility requirement.

3. Verify Insurance Instead of Relying Only on a Certificate

A certificate of insurance is a starting point—not the entire insurance review.

The broker should confirm that the coverage is active, applicable to the carrier and equipment, and adequate for the load. Depending on the freight, the review may include:

• Auto liability coverage
• Cargo coverage
• General liability coverage
• Policy limits
• Effective and expiration dates
• Covered equipment
• Policy exclusions
• Scheduled versus any-auto coverage
• Deductibles or self-insured retentions
• Insurer identity and financial stability
• Cancellation or lapse information
• Additional-insured requirements
• Primary and non-contributory language, when appropriate

Verification should come from a reliable source, such as the insurer or authorized insurance agent, rather than relying exclusively on a document supplied by the carrier.

Insurance requirements should also reflect the actual exposure. The coverage appropriate for an ordinary dry-van load may not be sufficient for hazardous materials, high-value freight, specialized equipment, or a load that could create substantial public exposure after a crash.

4. Review the Carrier’s Safety Record in Context

Carrier safety data should be evaluated as a collection of indicators—not reduced to a single score.

Review available information such as:

• Federal safety rating
• Date of the most recent safety rating
• Roadside inspection history
• Vehicle out-of-service results
• Driver out-of-service results
• Crash history
• Types and severity of violations
• Hours-of-service performance
• Vehicle-maintenance indicators
• Unsafe-driving indicators
• Recent trends
• Size of the carrier’s fleet
• Number of drivers
• Number of inspections supporting the data

A raw crash count can be misleading without considering the carrier’s size and exposure. Three crashes involving a three-truck carrier may present a different risk profile than three crashes involving a 500-truck fleet.

A thin record also should not automatically be treated as a clean record. A new or lightly inspected carrier may simply lack enough data to support a confident conclusion.

FMCSA specifically cautions that users should not draw conclusions about a carrier’s overall safety condition solely from information displayed in the Safety Measurement System. SMS data can help identify performance patterns and areas requiring further review, but it should be used as one component of a broader qualification process. Review FMCSA’s SMS guidance.

5. Determine Whether the Carrier’s Operation Makes Sense

The information supplied by the carrier should be reasonably consistent with its federal records and apparent operating capacity.

Ask whether:

• The number of trucks aligns with the number of drivers and inspections
• The carrier’s equipment matches the freight being offered
• Its authority age aligns with its claimed operating history
• Its inspection activity is consistent with its claimed geographic reach
• The carrier can realistically handle the volume it is accepting
• Contact, address, ownership, or insurance changes have a reasonable explanation
• The carrier accepting the load will be the carrier physically hauling it

A carrier claiming substantial nationwide capacity while reporting very few trucks, drivers, or inspections deserves additional scrutiny. Operational inconsistencies may indicate unauthorized re-brokering, identity misuse, inaccurate records, or another carrier operating behind the listed authority.

6. Review Claims History and Loss Runs When Appropriate

For higher-risk loads, new carrier relationships, or carriers with concerning indicators, the broker may need to go beyond public DOT data.

A deeper review can include:

• Claims history
• Loss runs
• Severity and frequency of losses
• Recent major accidents
• Litigation history
• Patterns of cargo loss or theft
• Unresolved insurance concerns
• Corrective actions taken after prior incidents

The purpose is not to reject every carrier that has experienced a claim. It is to understand what happened, whether the carrier addressed the underlying problem, and whether the remaining risk is acceptable for the proposed freight.

7. Scale the Review to the Risk of the Load

A defensible policy should not treat every load as if it presents the same exposure.

Additional controls may be warranted for:

• Hazardous materials
• Tanker operations
• High-value cargo
• Theft-targeted commodities
• Pharmaceuticals
• Electronics
• Alcohol
• Copper and other valuable metals
• Oversized or overweight loads
• Dense urban routes
• Expedited or team-driver service
• Passenger transportation
• Loads requiring specialized equipment

Depending on the exposure, enhanced controls may include higher insurance limits, direct insurance confirmation, senior approval, pickup verification, shipment tracking, defined trial lanes, restricted load types, or more frequent monitoring.

This risk-based approach protects the brokerage without unnecessarily eliminating carriers that may be appropriate for lower-risk freight.

8. Establish Written Approval, Rejection, and Exception Rules

The brokerage should have a written carrier-selection policy that employees can realistically follow.

The policy should define:

• Mandatory eligibility requirements
• Automatic disqualification conditions
• Safety indicators requiring further review
• Load-specific qualification standards
• Who can approve a carrier
• Who can approve an exception
• Required supporting documentation
• Re-vetting triggers
• Monitoring responsibilities
• Record-retention requirements

The person approving an exception should have appropriate safety or risk authority. When practical, that decision should not rest solely with someone whose compensation depends on covering the load.

If an exception is approved, the record should identify the concern, the information reviewed, the reason for proceeding, any restrictions imposed, and the person authorizing the decision.

9. Document the Decision When It Is Made

The carrier-selection file may become one of the most important pieces of evidence after a serious accident.

A defensible file should show:

• Who the carrier was
• How its identity was verified
• What records were reviewed
• When the records were reviewed
• What the records showed at that time
• What load the carrier was assigned
• What risks were identified
• What additional controls were applied
• Why the carrier was considered a reasonable choice
• Who approved the carrier or exception

Documentation should be created at onboarding, re-vetting, or tender—not reconstructed after an accident.

Federal carrier data changes over time. A carrier’s current profile may look very different from its profile on the day the load was assigned. A dated record helps establish what the brokerage actually knew and considered when it made the decision.

10. Continue Monitoring After Onboarding

A carrier that passed onboarding six months ago may not present the same risk today.

Changes requiring monitoring or re-vetting can include:

• Insurance cancellation or lapse
• Operating-authority changes
• Federal out-of-service orders
• Safety-rating downgrades
• Significant crashes
• Deteriorating inspection performance
• Ownership or address changes
• Material changes in equipment or drivers
• Extended periods of inactivity
• Claims or cargo-loss events

The policy should identify which changes create an automatic stop, which require additional review, and who is responsible for responding to the alert.

An alert alone does not protect the brokerage. The company must also document what it did after receiving the alert.

What Makes a Carrier-Selection Process Defensible in Court?

Being “defensible” does not mean that the brokerage cannot be sued or that it is guaranteed to win. It means the brokerage can produce evidence showing that it used a reasonable safety process and followed that process consistently.

Several practices can strengthen that position.

Use a Written Standard That Reflects Actual Operations

An impressive policy that employees cannot or do not follow may create additional problems. During litigation, the brokerage’s actual conduct can be compared with the requirements in its own policy.

The standard should be practical, consistently enforced, periodically audited, and updated as risks change.

Apply the Standard Consistently

Do not apply one process to preferred carriers and another to carriers selected under time pressure. If the brokerage allows exceptions, it should use the same documented exception process each time.

Consistency helps demonstrate that decisions were based on risk rather than urgency, favoritism, or the need to protect revenue.

Keep Contemporaneous Records

A dated record is considerably more persuasive than an explanation created after a crash.

The brokerage should be able to retrieve a load from a prior year and show:

• The carrier assigned to it
• The qualification information available at the time
• Any identified concerns
• The reason for approval
• Any risk controls used

A useful internal test is to select 10 or 20 past loads at random and determine whether the company can produce a complete carrier-selection record for each one.

Document Exceptions in Risk Terms

Avoid records that suggest the carrier was approved simply because the customer was demanding coverage or the load needed to move.

Exception records should state:

• The specific concern
• The additional information reviewed
• The mitigating factors
• The restrictions placed on the carrier
• The scope and duration of the approval
• The person responsible for the decision

Train Employees on the Process

Carrier sales representatives, dispatchers, account managers, risk personnel, and leadership should understand:

• What must be checked
• Which conditions are hard stops
• When a carrier must be escalated
• How exceptions are documented
• How alerts are handled
• Where records are stored

Training should focus on following the process—not simply on choosing safer wording in emails or TMS notes.

Have Transportation Counsel Review Contracts and Policies

Broker-carrier agreements should be reviewed by qualified transportation counsel. Important provisions may address insurance, indemnification, defense obligations, re-brokering, subcontracting, additional-insured status, and responsibility for the carrier’s drivers and equipment.

Contracts help allocate responsibility, but they do not replace carrier vetting. An indemnification provision is only useful if it is enforceable and supported by adequate insurance or financial resources.

How CNS’ PSM® Freight Broker Program Helps Protect Brokers

Managing this process manually can be difficult, especially for brokerages working with hundreds or thousands of carriers. Spreadsheets become outdated, onboarding records are stored in different systems, insurance certificates expire, and important changes can occur without reaching the right person.

The CNS PSM® Freight Broker Program helps brokerages create a repeatable carrier-vetting, monitoring, re-vetting, and documentation process.

1. Carrier-Network Review

CNS can evaluate the brokerage’s existing carrier network and identify gaps involving carrier qualification, monitoring, documentation, or re-vetting.

This gives the brokerage a clearer understanding of where risk may already exist within its approved-carrier list.

2. Continuous Monitoring

PSM can monitor important carrier changes, including:

• DOT record changes
• Insurance status and lapses
• Operating-status changes
• Federal out-of-service orders
• Safety-rating downgrades
• Re-vetting triggers

This helps the brokerage identify carriers that may need attention after the initial onboarding process.

3. Carrier Vetting and Pre-Qualification

Depending on the selected program level, CNS can provide carrier vetting, pre-qualification audits, claims-history review, and loss-run analysis.

The goal is to help the brokerage move beyond a basic authority-and-insurance check and make a more informed carrier-selection decision.

4. Triggered Re-Vetting

When a carrier’s status or risk profile changes, PSM can alert the brokerage or support an automated re-vetting workflow.

Instead of discovering an insurance lapse, out-of-service order, or rating change after a load has moved, the brokerage has an opportunity to review the carrier and respond sooner.

5. Due-Diligence Documentation

Broker-facing dashboards, reports, pre-qualification records, and compliance documentation help create a clearer paper trail.

That record can help the brokerage demonstrate:

• What it reviewed
• When the review occurred
• What changed
• Why re-vetting was triggered
• How the brokerage responded

This documentation can also support internal audits, insurance reviews, shipper RFPs, and legal preparation.

Carrier Risk Does Not End at Onboarding

A one-time carrier check is no longer enough.

A carrier’s authority, insurance, safety record, operating condition, ownership, and claims profile can change after approval. At the same time, a carrier that is reasonable for one shipment may not be appropriate for another load with substantially greater exposure.

Freight brokers need a process that verifies carrier identity, establishes minimum eligibility, evaluates safety data in context, scales scrutiny to the load, documents the decision, and continues monitoring after onboarding.

CNS’ PSM® Freight Broker Program helps brokerages turn those responsibilities into a structured, repeatable safety-management process. It cannot eliminate every accident, prevent every lawsuit, or guarantee a legal outcome. It can, however, help a broker make better-informed carrier decisions, respond to changing risk, and produce a clearer record of its due diligence.

If your brokerage cannot quickly show what was reviewed before a carrier received a load, now is the time to close that gap.

Start a Broker Safety Review with CNS and learn which PSM® Freight Broker Program level fits your carrier network.

This article is provided for general informational purposes and does not constitute legal advice. Freight brokers should consult qualified transportation counsel regarding their carrier-selection policies, contracts, record-retention practices, and state-specific legal obligations.