Additional insured vs certificate holder

The difference in one paragraph

A certificate holder is the party who receives the certificate. The role is administrative: you get a copy of the document, and often notice if the policy is cancelled early. You have no rights under the policy itself.

An additional insured is a party added to the policy who is actually insured under it — normally for liability arising out of the named insured's work. When a claim comes in from that work, an additional insured can tender the defence to the sub's carrier instead of paying for a lawyer out of pocket.

Most certificates list your company as the certificate holder by default. That is the line people read and stop at. It is also the line that gives you the least.

Side by side

• Certificate holder — receives the document; gets cancellation notice if the carrier offers it; no coverage, no right to defend a claim.
• Additional insured — is insured under the sub's policy for liability arising from their operations; can tender a claim to their carrier; needs an endorsement to exist.
• Named insured — the business that bought the policy, with all the duties that come with it: paying premium, reporting claims, cooperating with the insurer.
• Additional interest — a middle option used mostly in property damage situations: the party is covered for damage to their own property but is not an insured for liability claims.

Why the checkbox isn't proof

On the standard ACORD form there is a box asking whether additional insureds are included, with a line that says 'see additional remarks'. A broker can tick that box and write a sentence. Neither of those creates the status.

What creates it is an endorsement — a document attached to the policy that adds you as an insured. Two ISO forms do most of the work in construction: CG 20 10 adds a specifically named owner or contractor for a scheduled project or location, and CG 20 37 adds an ongoing client whose name is not known in advance. If a certificate says you are an additional insured but you have never seen an endorsement, ask for it.

Ongoing operations vs completed operations

Endorsements also differ in how long they protect you after the sub finishes. Some cover only the work while it is being performed; others extend to products-completed operations, which is what you want when a defect shows up two years after the roof was installed.

You don't have to know the form numbers by heart. What helps is asking the question in your contract: additional insured for the full policy period and for completed operations, with waiver of subrogation, and copies of the endorsements provided.

Get the name exactly right

• Use the legal entity name from the contract, not the trading name the crew puts on the truck.
• Name the owner or developer too, where the prime contract requires it — you can pass the requirement down to your subs.
• Name the project or location, so an endorsement written for last year's site isn't accepted for this one.
• Check the certificate holder and additional insured lines separately. A certificate can be addressed to you and still not insure you.

How to keep this manageable across a roster

The reason this check fails at scale isn't that anyone disagrees with it — it's that the proof sits in a PDF attachment in someone's inbox, and the requirement is written in a subcontract nobody reopens.

The practical version is a checklist per trade: what limits, which endorsements, what to ask for when something is missing. Send that checklist to the sub or their agent with an upload link, review what comes back, and hold approval until the endorsement is in the file. That's what DocumentLane's document requests and review workflow are built for: the requirement, the upload, and the approval decision live in one place instead of a mail thread.

Frequently asked questions

Keep reading

• EndorsementsWaiver of subrogation explainedAfter an insurer pays a claim, it can sue the party at fault to get the money back. A waiver of subrogation is what stops your subcontractor's carrier from coming after you.
• Document collectionHow to Ask Clients to Resubmit Incorrect DocumentsWhen a client sends the wrong file, a vague request to “try again” creates more work for everyone. Use a clear explanation, a precise replacement request, and one upload destination to get usable documents with less back-and-forth.
• Registration intakeSchool and university registration intake systems compared: Slate, PowerSchool, Finalsite, OnBase and DocumentLaneHow universities and school districts collect registration forms and supporting documents today — admissions CRMs, K-12 enrollment platforms and document archives — and where document verification still falls to staff.