Certificate of insurance in California: what it proves and what it does not

If a landlord, general contractor, client or lender has asked you for a certificate of insurance, you are being asked for evidence, not for coverage. The certificate shows what your policy looked like on the day it was issued. It changes nothing about the policy, and California law requires it to say so. This page explains what the document proves, what it does not, and what to do when a contract asks for more than the certificate can give.

What is a certificate of insurance?

A certificate of insurance is a one-page summary of a policy. The version used for liability coverage is ACORD 25, titled Certificate of Liability Insurance. It names the insured, identifies the carrier, lists the policy numbers, shows the effective and expiration dates, sets out the limits, and names the party it was sent to, the certificate holder.

What it is not is the policy. The policy is the contract, often a hundred pages of it. The certificate is a snapshot taken from that contract on one particular day, and it is only as current as that day.

Why does California law say the certificate cannot change your coverage?

Because the Legislature wrote that rule into the Insurance Code. Insurance Code section 384 requires a certificate provided in place of the policy to carry two statements, in those words or words to the same effect. The first is that it “is not an insurance policy and does not amend, extend or alter the coverage afforded by the policies listed.” The second is that, whatever a contract requires, the insurance “is subject to all the terms, exclusions and conditions of the policies.”

The ACORD 25 form carries that statement on its face. It adds that the certificate is issued for information only, gives the holder no rights, and is not a contract between the carrier, the agency and the holder. In practice this means one thing: if a contract requires coverage the policy does not provide, receiving a certificate does not create it. The certificate reports what the policy says. It does not add to it.

What is the difference between a certificate holder and an additional insured?

This is the distinction worth understanding properly, because the two are treated as the same thing and they are not.

A certificate holder is an address

The certificate holder is the party the certificate was sent to. Being listed there is a mailing instruction. It grants no coverage and no rights under the policy.

An additional insured has rights, and those rights come from an endorsement

An additional insured is a party actually given rights under the policy, and that status comes from an endorsement added to the policy itself, or from a provision already built into it. The endorsement is the operative document. ACORD 25 says this in its own notice. If the holder is an additional insured, the policy must have those provisions or be endorsed. A statement on the certificate does not confer rights in place of the endorsement.

So when a contract requires additional insured status, the endorsement comes first and the certificate then reports that it exists. In that order, not the reverse.

Which endorsement matters as much as whether there is one

The most widely used forms are the ISO family. CG 20 10 covers a scheduled owner or contractor’s ongoing operations, CG 20 37 covers completed operations, and CG 20 33 grants automatic status when a written construction agreement requires it. The current ISO editions are dated 12 19, the 04 13 editions are still common, and many carriers file their own versions with different wording. A “blanket” endorsement covers anyone the contract requires; a scheduled one names specific parties. A contract that asks for completed operations coverage is not satisfied by an ongoing operations form, however the certificate is worded.

What do a waiver of subrogation and primary and non-contributory wording require?

The same thing: a policy provision or an endorsement, not a note in the description box. Under a general liability policy the waiver is usually CG 24 04 and the primary and non-contributory condition is CG 20 01.

On California workers’ compensation the waiver is WC 04 03 06. It is a scheduled endorsement, applied to the parties named on it or to everyone the insured has a written contract with, and it carries a premium charge. That is why a waiver request is neither automatic nor free, and why it needs the contract to be in place first.

Does a certificate show the policy’s full limits?

Not always, and the current edition of the form says so. ACORD 25 (2025/12) states that the limits shown may be the amounts the certificate holder requested, and may not reflect higher limits the policy actually carries. If you are the insured, a certificate showing a lower figure than your declarations page is not a mistake. If you are the holder, the certificate confirms that at least the requested limit is in force, not what sits above it.

Will the certificate holder be told if the policy is cancelled?

Not by right. California requires notice of cancellation on a commercial policy to go to the named insured and the producer of record, under Insurance Code section 677.2. Nothing in it names the certificate holder. Section 674, which covers liability policies issued to public entities, says expressly that it does not require notice to an additional insured added by endorsement or certificate. The ACORD 25 cancellation box defers to the policy’s own provisions.

The thirty-day notice clause most contracts still ask for

Many contracts require the certificate to promise the holder thirty days’ written notice of cancellation. Carriers generally will not put that on a certificate, because the certificate cannot alter the policy and the notice obligation is set by the policy. If the other party genuinely needs notice, the route is a notice-to-others endorsement on the policy. That is worth raising during contract negotiation rather than at certificate-request time. Parties who truly depend on the coverage ask for a fresh certificate at each renewal instead of filing one away and assuming it stays true.

What should you check on a certificate?

Whether you are issuing one or receiving one, the useful questions are the same.

• The named insured should be the exact legal entity the contract names. A certificate in a different entity’s name, or a d/b/a where the contract names the corporation, is a common and avoidable rejection.
• The dates should cover the whole period of the work. A certificate that expires mid-project was accurate when issued and useless a month later.
• Every required line should appear. General liability, auto, workers’ compensation and umbrella or excess are separate lines on the form for a reason.
• An endorsement behind every additional insured or waiver line, not just wording in the description box. Ask for the endorsement itself if it matters to you.
• Whether the limits shown are the requested amounts or the policy’s, per the point above.

What does California require of licensed contractors?

The Contractors State License Board requires every active licensee to have on file either a certificate of workers’ compensation insurance, a certificate of self-insurance, or a signed exemption stating the licensee has no employees. Classifications C-8 concrete, C-20 heating and air conditioning, C-22 asbestos abatement, C-39 roofing and C-61/D-49 tree service must carry coverage regardless of headcount. Under SB 1455, signed in 2024, the exemption ends for every classification on 1 January 2028; until then the current rules for each classification are published by CSLB.

Contractors licensed as limited liability companies must also carry liability insurance under Business and Professions Code section 7071.19. The minimum is $1,000,000 in aggregate for five or fewer personnel of record, plus $100,000 for each additional person, up to $5,000,000. The certificate is filed with the registrar. For our contractor policyholders we typically handle these CSLB certificate filings as part of servicing the policy. What a contractor’s policy should contain beyond the licence file is covered in what insurance contractors need and on the contractors insurance page.

What happens when the contract asks for something the policy cannot provide?

This happens often enough to plan for. A contract demands a limit above what is carried, or an additional insured form the carrier will not issue. Or it wants completed operations coverage that has lapsed, or a workers’ compensation waiver from an owner who is exempt and has no policy.

The answer is never a differently worded certificate. It is either a change to the policy or a conversation with the other party about a requirement that cannot be met as written. Issuing a certificate that implies coverage which does not exist creates a far worse problem than the delay does, for the insured and for the agency that signed it.

Where the policy can be changed, the carrier has to endorse it before a certificate can honestly report the change. Some endorsements are added quickly. Others go to underwriting for approval, or the risk has to be placed in a different market first, and those take longer. Either way you know which it is before you commit to the contract.

Are you the one collecting certificates?

If you hire subcontractors, the certificates you collect are your protection, and the same rules apply in reverse. Collect them before the work starts, not after. Ask for the additional insured endorsement, not just the box on the certificate. Diarise the expiration dates. Ask for a fresh certificate at each renewal.

Clients of ours can set their required limits and endorsements once at certificate requirements and send subcontractors a link to submit their certificate directly to us, so the file is kept in one place.

How do you get a certificate of insurance from us?

Most certificates we issue ourselves from the policy. A few carriers issue their own certificates through their own systems, and when that applies we tell you and request it for you. Either way the certificate has to come from the agency or carrier that holds the policy, which is why nobody else can issue one for you.

Already a client of ours?

Use the certificate request form. Send the holder’s exact legal name and address, the insurance clause from the contract or the holder’s requirements sheet, and the project details if it is for a specific job. If the policy already meets the requirement, the certificate follows. If it does not, we tell you where the gap is and ask how you want to proceed. The options are to change the policy, to issue a certificate that shows what the policy actually provides, or to take the requirement back to the other party.

Not a client?

Start with a business insurance quote and send the contract’s insurance clause with it, so the policy is built to the requirement from the start. Some risks we can write directly and quickly. Others go to underwriting for approval, or need a wholesale market, and those take longer. Either way you know before you decide.

Certificates sit alongside the other documents carriers and counterparties ask for, including the statement of no loss (ACORD 37). This is general information about a common insurance document and is not legal advice.

Sources

• California Insurance Code section 384, section 677.2 and section 674
• California Business and Professions Code section 7071.19; SB 1455 (2024)
• Contractors State License Board, workers’ compensation requirements
• ACORD 25, Certificate of Liability Insurance, edition 2025/12, and ISO commercial general liability endorsements as filed; form titles cited, no form reproduced

Disclaimer

This article is provided by Schneiderman Insurance Agency for general informational purposes only. It is not legal, tax, financial, claims, or coverage advice. We are licensed insurance professionals, not attorneys, accountants, or financial advisors, and nothing here should be relied on as a substitute for advice from a qualified professional in those fields. This content is general in nature and is not a review of, or a recommendation for, any individual reader’s specific insurance needs, policies, or circumstances. Insurance coverage depends entirely on the specific terms, conditions, endorsements, exclusions, limits, underwriting eligibility, carrier, and facts of each situation, and the actual policy language always controls. We do not guarantee any coverage, pricing, eligibility, underwriting approval, or claim outcome. Reading this article does not create an agent-client relationship. To understand how these issues apply to your situation, please review your own policy and speak with a licensed insurance professional, and consult legal, tax, or financial advisors where appropriate.