Which document serves as a formal assertion of coverage from an insurance company?

The document that serves as a formal assertion of coverage from an insurance company is the certificate of insurance. This document provides evidence that an insurance policy exists and summarizes the key details of the coverage, including the types of insurance, policy limits, effective dates, and the parties involved. It is often used to verify that an individual or organization is insured, typically in situations where coverage must be demonstrated, such as when entering contracts or leasing property.

In contrast, the policy declaration is part of the insurance policy that outlines the key terms and conditions, but it is not typically issued as proof of insurance to third parties. An insurance binder is a temporary agreement that provides coverage until the actual insurance policy is issued, and while it signifies coverage, it is not a formal assertion of coverage in the same way a certificate is. Endorsement documents, on the other hand, are amendments to the policy that change or add coverage, rather than asserting the coverage itself.