A broker I know — solid guy, fifteen years in freight — got named in a lawsuit after one of his carriers rear-ended a minivan on I-65. One fatality. The carrier had no active insurance at the time of the accident. My colleague had an ACORD 25 in his carrier file showing $1,000,000 in liability coverage from a named insurer.
That certificate wasn't worth the email it was sent in.
I don't say that to pile on. Most brokers do exactly what he did: they ask for a COI, the carrier emails one over, it shows numbers above the federal minimum, and it goes in the file. Done. But that workflow has a hole in it that no one talks about, because explaining it requires going back to what an ACORD 25 actually is — and what it is not.
What an ACORD 25 Is
The Certificate of Liability Insurance is a standardized form produced by ACORD, the insurance industry's standards body. Every insurance agent in the country knows how to generate one. It's a two-page grid with boxes for the insurer's name, policy numbers, coverage types, limits, effective dates, and a description of operations. When you ask a carrier for proof of insurance, this is what lands in your inbox, usually within a few hours.
Here's the thing: the certificate is a snapshot. It tells you what the policy looked like on the day someone at the insurance agency printed it. The policy can be cancelled the next morning. The carrier can switch insurers. The insurer can go on a state's impaired list. None of that updates the PDF sitting in your file.
The form itself says this explicitly, in the fine print at the bottom that most people read once and then never look at again: "This certificate of insurance does not constitute a contract between the issuing insurer(s), authorized representative or producer, and the certificate holder." And below that: "The certificate does not affirmatively or negatively amend, extend or alter the coverage afforded by the policies listed."
So what does it prove? Standing alone, almost nothing. Here's how to use it correctly.
The Five Lines That Actually Tell You Something
1. The insurer name and NAIC number.
The NAIC code is a four or five-digit identifier assigned by the National Association of Insurance Commissioners. It's printed in a small box next to each insurer's name on the ACORD 25. Look it up. Takes sixty seconds at the NAIC website. There are carriers out there with certificates listing insurers that aren't licensed to write commercial auto coverage in the state where the carrier operates. There are also outright fraudulent certificates listing fictitious companies. The NAIC code is your first sanity check.
2. The policy number.
This is the line that most brokers ignore and shouldn't. Take that policy number and cross-reference it against the FMCSA L&I database — the Insurance tab on the carrier's Company Snapshot at SAFER. The filing that controls whether claims get paid is the one in FMCSA's system, not the one on the certificate. If the policy number on the COI doesn't match the active FMCSA filing, you have a discrepancy that needs an explanation before you tender a load.
3. Effective and expiration dates.
Does the policy actually cover the date of the load you're putting on this carrier? That's a basic check, but I've watched brokers file COIs that expired eight weeks before the accident they were supposed to document. Check the dates. Note them. If you use a carrier more than once, set a reminder to get an updated COI before the current one expires.
4. Coverage limits.
49 CFR § 387.7 sets the federal minimum financial responsibility for motor carriers: $750,000 for general freight in vehicles at or under 10,000 lbs GVW, $1,000,000 for general freight in vehicles above that threshold. Those are the floors. Household goods and hazmat have different requirements. Your carrier agreement might require higher limits on certain lanes. Cargo coverage is separate — more on that below.
5. The cancellation notice provision.
The old ACORD 25 standard included a 30-day notice requirement to the certificate holder if coverage was cancelled. The current form says coverage changes are handled "as per policy provisions," which means whatever the policy says — and some policies say 10 days. If you're on a carrier that has had its policy non-renewed rather than cancelled, the notice requirements are different again. Know what your certificate says, and know that it may not protect you the way you think it does.
The Five Lines That Don't Tell You Much
1. The Certificate Holder box.
Your company name in the certificate holder box does not make you an additional insured. It means the insurance agency has you on a mailing list. If the policy gets cancelled and the agency sends out notices, you're on the list. That's about it.
2. The Additional Insured checkbox.
Some ACORD 25 forms have a box checked indicating that the certificate holder is an additional insured. Don't bank on that box. The certificate isn't the policy. The box means the issuing agent is asserting that the policy provides AI status — but the policy endorsement is what actually grants it. If additional insured coverage matters on a load (and on high-value freight it should), get the endorsement itself, not just the checkbox.
3. Description of Operations.
This box usually says something like "transportation of commodities, per certificate holder's requirements." It's not a coverage scope. It doesn't limit or expand what's covered. The policy determines what's covered. This line is filler.
4. The producing agent's signature.
The person who signed the bottom of the certificate works for an insurance agency or brokerage, not for the insurer. Their signature means they generated the form. It is not a warranty that the coverage is active, that claims will be paid, or that anything about the underlying policy is what it appears to be.
5. The ACORD form version number.
I have personally watched a logistics manager reject a COI because it was on the 2016/03 version of the form instead of a newer release. The version number doesn't affect coverage. What's in the boxes does.
The Real Problem: It's Not Real-Time
Here's the scenario that should make every broker uncomfortable. Say you're booking a time-sensitive load — consumer electronics, $220,000 shipment, Chicago to Atlanta. Your rep tenders it to MC-1247893 (DOT-3567102). Carrier emails over an ACORD 25 the same afternoon. Insurer listed: Continental Inland Insurance, NAIC 24113. Policy number CIL-2024-88771. Limits: $1,000,000 BIPD, $100,000 cargo. Expiration: January 2027. Looks clean.
You pull the FMCSA Company Snapshot for this carrier. Insurance tab shows one active filing: $1,000,000 BIPD from Western Transport Guarantee, effective March 2026. No record of an active filing from Continental Inland Insurance.
What happened? One of a few things: the Continental Inland policy lapsed and the carrier switched to Western Transport, but never sent you an updated COI. Or the Continental Inland certificate was fraudulent to begin with — it listed a real insurer, but there was never a policy. Either way, the COI you filed would not have protected anyone.
The FMCSA L&I pull caught it in about four minutes.
The Regulation That Actually Matters Here
49 CFR § 387.7 requires motor carriers to maintain proof of minimum financial responsibility on file with the FMCSA. Not with you. With the federal government. The carrier's obligation is to keep an active filing in FMCSA's system. The certificate they email you is a courtesy — sometimes a genuine one, sometimes not.
So at load-tender time, the FMCSA L&I database is the source of truth. If the carrier's active filing there doesn't match what's on the COI, the COI is the problem. If the active filing shows a different insurer, a different policy number, or a gap in coverage that doesn't exist on the certificate, you have a real risk sitting in front of you — not a paperwork mismatch.
One more thing worth saying: cargo coverage doesn't appear in FMCSA L&I at all. Liability insurance is the federal filing. Cargo insurance is a private contract and there's no federal registry for it. If cargo coverage matters — and it matters on any load where the freight value exceeds what the carrier's liability minimums would cover — the only way to verify it is the COI plus a direct phone call to the insurer's verification line. Most brokers don't make that call. Most brokers aren't hauling $220K loads of electronics. When you are, make the call, log it, and document what you were told.
After Montgomery v. Caribe Transport II, LLC this year, the stakes for negligent carrier selection are higher than they've ever been. Brokers can be sued in state court now. What a plaintiff's attorney will want to see is your carrier file — what you verified, when you verified it, and whether you caught the discrepancy or missed it. A COI with no L&I cross-reference in the file is exhibit A for "the broker didn't actually check."
How I Document This
When I'm working a load, here's the paper trail I keep on insurance:
Pull the ACORD 25 and save it with the date in the filename (MC1247893_COI_2026-07-11.pdf). Note the insurer name, NAIC code, policy number, and expiration date in the carrier record.
Pull the FMCSA L&I tab the same day. Screenshot it or log the active filing details — insurer, policy number, effective date. Note explicitly whether the COI insurer and policy number match the active FMCSA filing. If they match, write that. If they don't, document the discrepancy and how you resolved it, or document that you didn't tender.
For any load with cargo value above $150,000, log a call to the insurer's verification line: date, time, name of the person I spoke with, and what they confirmed. Takes five minutes. Costs nothing. Saves you a lot of explaining later.
If the carrier agreement requires additional insured status, note whether the endorsement was received or whether AI coverage is established through the agreement. The COI checkbox isn't enough.
The goal isn't to create paperwork for its own sake. It's to have a file that reflects genuine diligence, not a process that looks thorough at first glance and falls apart on deposition.
A certificate of insurance is a starting point, not a finish line. The brokers who understand that difference are the ones who can defend their decisions when something goes wrong.
— Mason Lavallet
Founder, DOTScreener.com
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