Additional Insured vs Certificate Holder: A Critical Distinction

Being listed as the certificate holder on a COI means you receive notifications about the policy. Being listed as an additional insured means you have actual rights under that policy - including the right to be defended and indemnified if a claim arises from the vendor's work.

These are not the same thing, and confusing them is one of the most consequential mistakes in COI compliance.

What Certificate Holder Means

The certificate holder field (bottom left of the ACORD 25) is where your organization's name and address appears when you request a COI. It designates you as the party who should receive the certificate.

As certificate holder, you may also receive notice of cancellation - most policies include a cancellation notice provision, and certificate holders are typically on the notification list. Some states require 30 days' notice.

That's it. Certificate holder status does not:

• Give you coverage rights under the vendor's policy
• Make the insurer responsible for defending you
• Create any obligation for the carrier to respond to a claim involving you
• Provide any protection if you're named in a lawsuit

A certificate holder is an administrative designation. It creates a paper trail, not a coverage right.

What Additional Insured Means

Additional insured (AI) status is granted by an endorsement to the vendor's insurance policy. When you're an additional insured, the vendor's policy covers you - not just the vendor - for claims arising from the vendor's work.

As an additional insured, you have the right to:

• Tender your defense to the vendor's insurer if you're sued in connection with the vendor's work
• Have the vendor's insurer pay defense costs and settlements on your behalf
• Invoke the vendor's policy before your own policy is required to respond (if the AI endorsement includes primary and non-contributory language)

This is the risk transfer that makes vendor insurance requirements valuable. Without AI status, you're collecting evidence that the vendor has insurance - but that insurance doesn't protect you.

How the Endorsement Works

Additional insured status requires two things:

1. A contractual requirement: Your contract with the vendor must require them to name you as an additional insured.
2. An endorsement on the policy: The vendor's carrier must attach an AI endorsement to the actual policy.

The checkbox on the ACORD 25 is informational. It indicates that the agent believes an AI endorsement exists. It doesn't prove it, confirm the language, or create coverage. The endorsement on the policy is what controls.

The CG 20 10 and CG 20 37 Endorsements

For commercial general liability, there are two standard ISO AI endorsement forms that matter:

CG 20 10 (Additional Insured - Owners, Lessees, or Contractors - Scheduled Person or Organization - Ongoing Operations): Covers you for claims arising from the vendor's ongoing work. If a worker is injured while the job is in progress and you're named in the suit, this endorsement activates.

CG 20 37 (Additional Insured - Owners, Lessees, or Contractors - Completed Operations): Covers you for claims arising after the vendor's work is complete. This is critical in construction and any work where defects or injuries may not manifest immediately.

Many contracts specify both CG 20 10 and CG 20 37. A vendor whose policy only has one - or has a blanket AI endorsement that covers ongoing operations only - leaves you exposed for completed operations claims.

When you verify AI status, confirm which endorsement form is in use. Request the actual endorsement documents if the exposure warrants it.

The Common Mistake

The most common mistake: accepting a checked "Additional Insured" box on an ACORD 25 as confirmation of AI status. Risk managers and operations staff see the box checked, assume they're covered, and file the COI.

What they don't verify:

• Whether the AI endorsement actually exists on the policy
• Which AI form was used and whether it covers completed operations
• Whether the AI endorsement is blanket (covering anyone required by contract) or scheduled (listing your organization specifically)
• Whether the endorsement language matches what your contract requires

In a claim, the insurance carrier pulls the actual policy - not the COI. If the endorsement doesn't match what the COI implied, you may find you don't have the coverage you thought you had, at exactly the moment you need it.

Consequences in a Claim Without AI Status

Here's what happens if you're not actually an additional insured when a claim arises:

1. You're named in a lawsuit alongside the vendor
2. You tender the claim to the vendor's insurer, expecting to be defended
3. The insurer reviews the policy and finds no AI endorsement naming you
4. The insurer defends the vendor only
5. Your own insurer defends you - at your expense, under your policy, affecting your premiums and aggregate
6. You may have a contractual breach claim against the vendor for failing to add you as required, but that's a separate lawsuit during an already expensive situation

The cost differential between having AI status and not having it in a significant claim can be hundreds of thousands of dollars.

How to Confirm Additional Insured Status

1. Require AI language in your contract with the vendor
2. Specify the endorsement forms required (CG 20 10 and CG 20 37 for GL)
3. Review the ACORD 25 for the AI checkbox and any AI language in the description of operations
4. For high-value or high-risk vendor relationships, request the actual endorsement forms from the vendor's agent

Bramble checks AI status against your contract requirements automatically, flagging certificates where endorsements are missing or insufficient. See how it works.