Certificate of Insurance vs Insurance Policy: What Each Proves
A certificate of insurance summarizes policy information; an insurance policy sets out the insurance contract. A certificate is useful for intake, dates and reported limits. It does not, by itself, resolve every coverage question in a construction agreement, lease or vendor contract.
The Hartford’s ACORD explanation states that a certificate does not change or guarantee coverage. The practical consequence is to distinguish a field comparison from a policy-scope decision.
Compare their jobs
| Document | Useful for | What still needs review |
|---|---|---|
| Certificate | Insured identity, policy numbers, reported dates and limits | Whether the actual policy meets the requirement |
| Declarations or schedule | Identifying the policy and listed items | Conditions, exclusions and endorsements |
| Endorsement | A specific addition or change to policy wording | Its context within the complete policy |
| Full policy | Coverage terms and incorporated documents | Interpretation for the facts and applicable law |
A standalone endorsement page is not automatically a complete answer either. Check its policy identity, effective timing and relationship with the rest of the packet.
Start with the question you need answered
If the question is “When does the reported GL policy expire?”, the certificate may provide the field you need to record. If the question is “Does this owner qualify under the additional insured wording for completed operations?”, you need the relevant provisions and a qualified interpretation.
This avoids two common administrative failures: accepting a certificate as a universal coverage guarantee, or collecting hundreds of policy pages without identifying what anyone must review.
A hypothetical exclusion review
River Construction requires insurance for a residential renovation. A subcontractor’s certificate reports a GL limit that meets the contract’s numerical requirement. The broker reviewing the packet asks for the relevant operations and exclusion wording before resolving the scope question. The numerical match remains recorded, but it is not described as complete coverage approval.
Texas TDI’s FAQ expressly permits requesting policies or endorsements and limits claims a certificate can make about exclusions. Those Texas examples reinforce why precise supporting-document requests matter.
Document the decision and its limits
Record the requirement, evidence reviewed, reviewer, date and any unresolved issue. Keep historical packets associated with their work periods. If an insurer or endorsement changes at renewal, revisit the scope questions instead of copying last year’s approval.
Use the COI review checklist and broker document request checklist. Certy helps organize certificate information and follow-up; its extracted fields and rules are not a determination of policy coverage or legal compliance.
Frequently asked questions
Is a COI an insurance contract?
A standard certificate summarizes reported policy information. The insurance contract and applicable provisions determine coverage, not the certificate by itself.
Should I request the entire policy from every vendor?
Use a risk-appropriate review process. Ask your broker or adviser which policy sections and endorsements are needed for the actual requirements instead of collecting documents without a review purpose.