Additional insured, named insured, certificate holder: which one are you?

Three terms appear on every certificate of insurance and two of them are commonly mistaken for the third.

Only one gives you the right to make a claim on somebody else's policy. Most property managers, asked which one they have, name the wrong one.

Named insured is the vendor, and it is never you

The named insured is whoever bought the policy. On a vendor's certificate that is the vendor.

They control the policy. They pay the premium, they can cancel it, and they receive notice of everything. Their coverage follows them across every job they work, yours included.

You are not the named insured on your vendor's policy and you should not want to be. What you want is a defined interest in it.

One thing worth checking here, because it fails quietly: the named insured must be the legal entity you actually contracted with. A certificate naming "Lone Star Plumbing LLC" when your master vendor agreement is with "Lone Star Plumbing & Heating, Inc." is a mismatch. Same trucks, same crew, different legal person. Carriers notice this at claim time even when nobody noticed it at onboarding.

Certificate holder is an address label

This is the one that fools people, because your name is printed on it.

Certificate holder means the certificate was addressed to you. That is the entire meaning. It is an administrative field indicating who received a copy.

It grants no coverage. It creates no obligation to notify you of cancellation, despite what many people assume. It does not let you make a claim.

The ACORD 25 says this directly, in bold, across the top: the certificate confers no rights upon the certificate holder. A document whose own header disclaims your rights is not the document securing them.

Being certificate holder and nothing else means you have proof the vendor had insurance on the day the agent typed the form. Nothing more.

Additional insured is the one that matters

Additional insured status extends the vendor's policy to cover you for liability arising out of their work.

If someone is injured because of your plumber's negligence and sues you as the property owner, additional insured status is what lets you tender that defense to the plumber's carrier rather than your own. That is the whole point. It moves the claim off your loss run.

The status comes from an endorsement to the policy, not from the certificate. This distinction is where most compliance programs have a hole:

Ask for the endorsement, not the certificate. The certificate is a claim about the endorsement.

Two endorsement forms, and vendors often send only one

Additional insured endorsements are not generic. The form number defines the scope.

CG 20 10 covers ongoing operations. You are covered for liability arising while the vendor is performing the work.

CG 20 37 covers completed operations. You are covered for liability arising from the work after it is finished.

Property claims frequently arise from the second category. A roof repaired in March that leaks in November, causing interior damage. A water heater installed badly that fails six months later. Ongoing operations coverage alone does nothing for either.

A vendor providing CG 20 10 and not CG 20 37 is providing half of what you asked for, and their certificate can look entirely compliant.

Two clauses that decide who pays first

Additional insured status alone still leaves two questions open, and both get answered in the description of operations box or not at all.

Primary and non-contributory. Without this wording, the vendor's policy and yours can be treated as co-primary, and your carrier contributes to a loss caused by somebody else's work. Your loss run takes the hit, and your renewal reflects it.

Waiver of subrogation. Without this, the vendor's carrier can pay the claim and then pursue you to recover, which defeats the purpose of having tendered it. A waiver blocks that recovery.

Neither is a checkbox on the ACORD form. Both need to be requested in your vendor agreement and confirmed in the endorsement.

What to require in writing

Requirements have to live in the master vendor agreement, because additional insured endorsements often apply only "as required by written contract." If your contract does not require it, the endorsement may not attach.

The language worth having:

Vendor names the property owner and manager, and their affiliates, as additional insureds on general liability, covering both ongoing and completed operations, on forms CG 20 10 and CG 20 37 or equivalent, primary and non-contributory, with waiver of subrogation, and supplies the endorsement forms on request.

That single sentence closes the gap between what most certificates show and what most programs assume they show.

Why this is a systems problem rather than a knowledge problem

Nothing above is obscure. Any risk manager knows it.

The difficulty is volume. A portfolio with a few hundred active vendors, each with a general liability policy, a workers comp policy, an auto policy, and sometimes an umbrella, each renewing on its own date, produces a stream of documents nobody can review at 15 to 30 minutes each and stay current.

So programs degrade into checking that a certificate exists and that the limits look right. Which catches the obvious failures and misses the endorsement scope entirely.

IDCore reads the ACORD form and matches every extracted value against your per-property requirement set, including additional insured endorsements and waivers of subrogation, and flags the mismatch with the specific reason. When a vendor genuinely lacks the coverage, InsurePro can place it in the same flow, which is the part that turns a rejection into a cleared vendor rather than a stalled job.

Pull three certificates from your file right now. How many have the endorsement attached, rather than just the box checked?