Additional Insured vs. Certificate Holder

The certificate holder is simply the party the certificate was issued to. It is the box at the bottom-left of an ACORD 25 with your company name and address in it.

That is the entire meaning. It identifies who asked for the document. It does not:

• Give you any coverage
• Give you the right to make a claim on the policy
• Obligate the insurer to defend you
• Guarantee you will be notified if the policy is cancelled

The form says so itself. The ACORD 25 carries a disclaimer across the top stating that it is issued as a matter of information only and confers no rights upon the certificate holder. It is printed on every certificate you have ever received.

If your entire compliance process is "we are listed as the certificate holder," you have collected paperwork, not protection.

An additional insured is a party added to someone else's liability policy, extending that policy's coverage to them for liability arising out of the named insured's work.

In practice, when you are an additional insured on your subcontractor's general liability policy and a claim arises from their work that also names you, their insurer may owe you a defense and indemnity — instead of you turning to your own policy, paying your own deductible, and taking the claim on your own loss history.

That is the protection you were trying to buy by requiring insurance in the first place.

This is the part that matters, and where certificates get thin.

Additional insured status is created by an endorsement — an amendment to the policy itself. It is not created by the certificate. The certificate can only report that an endorsement exists.

Common endorsement forms in construction include:

• CG 20 10 — additional insured, ongoing operations
• CG 20 37 — additional insured, completed operations

The distinction between those two matters more than most people realize. Ongoing operations covers claims arising while the work is in progress. Completed operations covers claims arising after the work is finished — which, for construction defect, is when most claims actually arrive. Requiring only one leaves a gap on the other side.

Many policies use a blanket additional insured endorsement, which automatically grants status to any party the named insured has agreed in a written contract to add. Blanket endorsements are common and legitimate — but they make the written contract the thing that determines your status. If your subcontract does not require additional insured status, a blanket endorsement grants you nothing.

On the ACORD 25, look at the ADDL INSD column — a narrow column of checkboxes on the left side of the coverage grid, one per coverage line. A checked box indicates the insurer's representation that an additional insured endorsement applies to that line.

Three cautions:

1. Check it per line. Additional insured status on general liability does not mean it exists on auto or umbrella. The boxes are separate for a reason.
2. Read the Description of Operations box. Additional insured status is frequently described there rather than reflected in the checkbox — and often with conditional language such as "as required by written contract." That phrasing is not a grant; it is a pointer back to your contract. If your contract does not require it, the condition is not met.
3. The checkbox is a summary, not the endorsement. The endorsement itself is a separate document. If additional insured status matters for a particular sub — and on a job of any size it does — ask for a copy of the endorsement, not just the certificate.

That last point deserves its own emphasis, because it is where the paperwork most often diverges from the coverage. We wrote a separate guide on it: why the certificate isn't enough.

For most general contractors hiring subs, a workable standard is:

• Additional insured status for your company on the sub's general liability, covering both ongoing and completed operations
• The same for the property owner when your contract requires it
• Waiver of subrogation in your favor — preventing the sub's insurer from turning around and pursuing you after paying a claim
• Primary and non-contributory wording — so the sub's policy responds first, rather than sharing with yours

Put all of it in the subcontract, not just in the certificate request. With blanket endorsements, the contract is what triggers the coverage.

Your subcontract requires additional insured status. The certificate arrives with your company in the certificate holder box, and nothing checked in the ADDL INSD column. The Description of Operations box is empty.

You have: a document confirming the sub carries insurance, addressed to you.

You do not have: any status under that policy. If a claim from their work names you, you are on your own policy.

The fix is a phone call to their agent, not a filing decision. Agents reissue corrected certificates routinely, and an endorsement request is ordinary business. The only expensive version of this is the one nobody catches until a claim.