Every certificate of liability insurance in the United States uses the same layout, published as form 25 by ACORD, the body that maintains the industry's standard forms. Read it in this order: the insured name, the policy dates, the limits, the two check box columns, and the Description of Operations box. Those five things decide whether the certificate satisfies a contract. Who this is for: anyone who receives or sends certificates.
The short version
- The insured name must match the entity in the contract exactly, not just closely.
- Policy dates have to cover the entire term of the work, not just the start date.
- The ADDL INSD and SUBR WVD columns are claims about endorsements, and claims can be wrong.
- The Description of Operations box is free text and carries no legal force by itself.
- The cancellation clause promises notice in accordance with the policy, which often means none to you.
Top to bottom, box by box
| Box | What to check | What goes wrong |
|---|---|---|
| Producer | A real licensed agency with a phone number | A certificate with no verifiable producer is a red flag |
| Insured | Exact legal entity name and address | A parent company or a trade name that is not the contracting entity |
| Insurer A, B, C | Carrier names and AM Best ratings | An unrated or unfamiliar carrier where the contract requires A minus or better |
| Type of insurance | Every policy the contract requires is present | Professional liability missing entirely on a services contract |
| Policy number | Present for each line | A blank policy number, which usually means it was not bound |
| Effective and expiration dates | Cover the full period of work | A policy expiring six weeks into a nine month project |
| Limits | Meet or exceed the contract | Per occurrence meets the requirement but the aggregate does not |
| The additional insured column | Checked where required | Checked with no endorsement actually on the policy |
| The subrogation waived column | Checked where required | Checked on workers compensation without the endorsement being purchased |
| Description of Operations | Names the project and the endorsement forms | Vague wording that a compliance reviewer will reject |
| Certificate holder | Exact legal name and address from the contract | A misspelling that fails an automated portal check |
| Cancellation | Standard wording | Assuming it promises you 30 days notice, which it usually does not |
The limits section, read properly
On the general liability line you will see several numbers, and they do different jobs:
- Each occurrence. The most paid for any one claim.
- General aggregate. The most paid for all claims during the policy year, shared across every project and every certificate holder.
- Products and completed operations aggregate. A separate ceiling for claims arising after work is finished, which matters most in construction.
- Damage to rented premises and medical expense. Small sublimits for fire damage to premises you rent and for medical payments.
A contract asking for $1M per occurrence and $2M aggregate is asking about the first two. If the aggregate is shared across every job the contractor has this year, a bad year elsewhere can leave very little behind the certificate you were handed. That is what a per project aggregate endorsement fixes.
The two check boxes people trust too much
The additional insured column claims that the holder is one. The subrogation waived column claims that the insurer has waived its right to recover from the holder. Both are only true if the underlying policy carries the endorsement. The certificate is a report by the broker, not confirmation from the carrier. If the requirement matters, ask for a copy of the endorsement form itself, which is the document that actually changes the policy.
Verifying one you received
- Call the producer listed at the top, using a number you look up rather than the one printed.
- Check the policy dates against the whole period of work, including any warranty period.
- Compare the limits line by line with the contract, aggregate included.
- Ask for the additional insured and waiver endorsements when those boxes are checked.
- Diary the expiration date and re-collect before it passes.
What this looks like in practice
Illustrative example. It is typical of what we see and is not a promise of how any specific situation would be handled.
The setup: A general contractor collects a subcontractor certificate showing $1M per occurrence and $2M aggregate, with the additional insured box checked.
What went wrong: The subcontractor's aggregate had already been eroded by two claims on other jobs, and the additional insured endorsement on the policy applied to ongoing operations only, not completed operations.
What it cost: A defect claim two years after project close found almost no aggregate left and no completed operations coverage for the general contractor.
The fix: Require a per project aggregate and completed operations additional insured wording, and ask for the endorsement forms rather than trusting the check boxes.
Frequently asked questions
Q: Why does every certificate look the same?
Because they all use the same standard layout, published as form 25 by the body that maintains the industry's standard forms. Once you can read one, you can read all of them.
Q: What do the two check box columns mean?
Additional insured and subrogation waived. They are claims that your policy carries those endorsements. They are only true if the endorsements actually exist, so ask for the forms when it matters.
Q: Which limit matters most on a certificate?
The aggregate, usually. Per occurrence is what a single claim can draw, but the aggregate is shared across the whole policy year and every other project, so it is the number that can quietly run out.
Q: Does the Description of Operations box create coverage?
No. It is free text used to name the project and cite endorsement form numbers. It has no legal force on its own, and wording there cannot add coverage the policy does not contain.
Q: What does the cancellation clause actually promise?
Usually that notice will be delivered in accordance with the policy provisions, which typically means the insurer notifies the named insured rather than every certificate holder.
Q: Should I accept a certificate with a blank policy number?
No. A blank policy number usually means the coverage was quoted rather than bound. Ask for a corrected certificate before letting the work start.
How Morrow helps with certificates of insurance
Morrow is a licensed independent commercial insurance brokerage that specializes in certificates of insurance and the endorsements behind them. Reading a certificate the way a compliance reviewer reads it is the kind of thing we handle every day, for clients across construction, trades, professional services, trucking, real estate, and hospitality, so we know what a compliance reviewer will reject before you send it.
- We issue certificates the same day you ask, and usually within the hour.
- We read the contract first, so the endorsements the certificate reports actually exist on your policy.
- We push back on requirements the market will not issue, and give you language your client will accept.
- We keep a record of who was issued what, so renewals go out before anyone chases you.
Get in touch and we will see how we can help. Send us the contract or the certificate request and we will tell you what your current policy can support and what needs to change. Start at morrowinsure.com or reach the team through the contact options on that page.
One more thing. This article is general information and is not legal advice or a statement of coverage. Certificates report what a policy says, and the policy wording controls in every case. Forms and requirements vary by carrier, by state, and by contract, so have a licensed advisor review your own policy and your own contract before relying on any of it.
Last updated: Reviewed by the Morrow commercial lines team. Last updated August 2026.