Why Certificate of Insurance Tracking Is the Weak Link

Why a Certificate of Insurance Isn't Proof of Anything by Itself

A COI is a snapshot, generated by an insurance broker, summarizing a policy's key terms at a point in time. It is not a contract, it is not a guarantee, and it is not always accurate. A COI can be issued showing limits or an additional insured endorsement that doesn't actually match the underlying policy. It can be issued correctly and then become outdated the moment the policy lapses, gets cancelled for non-payment, or renews with different terms. A GC who collects a COI once, at the start of a project, and files it away has a document proving what was true on the day it was issued — not proof of anything on the day a claim actually happens.

What a Real Tracking Process Actually Checks

Expiration dates, tracked against project timelines — not just collected once. Multi-month or multi-year projects need COIs re-verified on a schedule, not assumed to still be valid.

Limits that match the contract requirement — not just "has insurance," but insurance at the specific limits your subcontract actually requires.

The additional insured endorsement is actually referenced, by form number, and ideally confirmed against the endorsement itself rather than taken on faith from the COI's summary line.

Primary and noncontributory language is present, not just additional insured status generically.

Waiver of subrogation is listed, matching the contract requirement.

The named insured matches the actual subcontractor on your subcontract — a surprisingly common mismatch when subs operate under multiple entity names or DBAs.

Why This Fails So Often

COI tracking is unglamorous, ongoing, administrative work — exactly the kind of task that gets deprioritized when a GC is focused on running jobs, not filing paperwork. On a project with a dozen subcontractors, each with insurance renewing on their own schedule, manually tracking every expiration date and confirming every endorsement is a real operational burden, and it's common for it to happen thoroughly at project kickoff and then quietly stop being maintained as the job progresses.

Building a Tracking Process That Holds Up

At minimum: a central log of every active subcontractor's COI, expiration date, and required endorsements, reviewed on a recurring schedule, with a defined process for what happens when a COI is missing, expired, or doesn't match requirements. Many GCs eventually move to dedicated COI tracking software or a managed tracking service once the subcontractor count makes manual tracking unreliable; either way, the process matters more than the tool.

General information only — not legal advice. Whether a specific COI or endorsement actually satisfies your contract requirements should be confirmed with a licensed insurance professional, and any dispute over coverage should involve your attorney.