MC SENTRY

Carrier insurance monitoring for 3PLs

Monitoring a carrier list at 3PL scale, where the failure mode is not a bad carrier but a good one whose coverage lapsed after you approved it.

By MC Sentry · · How these figures are computed

Carrier insurance monitoring for 3PLs is a list problem, not a lookup problem. You are not trying to find out whether one carrier is insured. You are trying to be told, without asking, when any of eight hundred stops being insured.

That inversion is the whole difficulty. Nobody has time to re-run eight hundred lookups, so in practice the list gets re-checked when a claim forces it.

The failure this prevents

Not fraud. The ordinary case: a carrier you approved, hauled with for a year, and have no reason to doubt, whose insurer files a cancellation because a premium went unpaid.

FMCSA records the cancellation immediately. It suspends the authority a median of 17 days later. In between, every automated check keyed on authority status reports the carrier as fine, because by the field it is reading, the carrier *is* fine — authority active does not mean insured.

At 3PL volume this is not hypothetical. On a list of eight hundred carriers, the base rate of insurance events means something is in that window most weeks.

What monitoring has to do at this scale

  • Read every carrier daily, not on a rotation. A weekly cycle means a seven-day

detection lag stacked on top of the filing lag.

  • Report changes, not status. A daily digest of eight hundred rows is a file nobody

opens. A digest of the four that moved is a file that gets read.

  • Distinguish cancellation from expiry from replacement. A policy replaced by the same

insurer on the same day is not an event; a policy cancelled with nothing behind it is. Why carrier insurance gets cancelled walks through which patterns matter.

  • Check coverage against your own floor. The federal minimum is $750,000 BIPD, and many

shipper contracts require $1M. A carrier can be fully compliant with FMCSA and below your contractual requirement — what insurance limits to require covers where those numbers come from.

The audit trail

Shipper contracts increasingly ask a 3PL to show that carrier compliance was monitored, not just verified once. What that means in practice is being able to produce, for a given load on a given date, what the FMCSA record said that day.

That is a record-keeping requirement, and it is the reason monitoring output is worth retaining rather than being an alert that scrolls past. Pro plans include an exportable audit PDF; the underlying daily readings are retained regardless of plan.

Getting a list under monitoring

Import a CSV from your TMS — DOT numbers or MC numbers, both resolve. MC numbers are resolved against the docket index rather than by stripping the letters, which matters because an MC number is not a USDOT number and treating one as the other can silently return a different carrier.

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Free tier watches five carriers with no card. Starter is $39/month for 500; Team is $199/month for unlimited with API and webhooks.

We report what is on file with FMCSA. We do not rate carriers.

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