Contract guide

Additional Insured Endorsement

Translate a contract request to extend certain liability protection to another party into policy, endorsement, certificate, and renewal questions before signing.

Reviewed August 11, 2026. Educational guide, not a quote or coverage decision.

Start with the exact contract wording

This page focuses on a contract request to extend certain liability protection to another party. Copy the clause exactly into the insurance review file before asking for a certificate or endorsement. A certificate can show evidence of insurance, but it does not create coverage that the policy does not provide.

  • Identify the requesting party and agreement.
  • Mark every required policy, limit, endorsement, waiver, notice, or aggregate.
  • Separate insurance requirements from indemnity or other legal obligations.
  • Send unclear legal wording for appropriate legal or licensed insurance review before signing.

Questions to resolve

  • Who must be named and for what relationship?
  • Is coverage required for ongoing operations, completed operations, or both?
  • Which endorsement form is required or acceptable?
  • Does the contract also request primary/noncontributory wording or waiver of subrogation?

Contract-to-policy worksheet

Use one row for each requirement so a rejected COI can be traced back to the contract and policy.

Contract requirementPolicy / endorsementEvidence providedOpen issue

Before the certificate is sent

Keep the contract clause, declarations page, endorsement, COI, and email trail together. If the requester rejects the certificate, ask for the reason in writing so the next review addresses the exact deficiency.

  • Verify legal names and certificate holder details.
  • Verify effective and expiration dates.
  • Attach endorsement copies when the agreement requires them.
  • Set a renewal reminder before the policy expires.

Related reading

Sources and verification

Use official and primary sources to verify current rules, insurer licensing, policy wording, and state requirements. The declarations page, forms, endorsements, and signed contracts control the actual insurance relationship.