Glossary
What is a COI in Construction?
A COI (Certificate of Insurance) is a standardized document proving that a contractor or subcontractor carries specific insurance coverage — typically general liability, workers compensation, and commercial auto.
Definition
A COI (Certificate of Insurance) is a document issued by an insurance company that summarizes a contractor active insurance policies. In construction, COIs are collected from every subcontractor and supplier working on a project as proof they carry the required insurance.
Frequently Asked Questions
Related Glossary Terms
Run Your Construction Business With BuilderMate
Construction CRM, builder software, and commission tracking in one platform. $99/mo, all features included.