Definition:Additional insured
🛡️ Additional insured is a party other than the named insured who is added to a commercial insurance policy—most commonly a commercial general liability policy—so that it also receives coverage for certain liabilities arising from its relationship with the policyholder. The arrangement is pervasive in construction, real estate, and professional services, where contracts routinely require one party to extend its insurance protection to another as a condition of doing business.
🔗 An additional insured is typically added through an endorsement attached to the policy, which spells out the scope of coverage the added party receives. Some endorsements grant broad ongoing-operations-and-completed-operations protection, while others limit coverage strictly to vicarious liability caused by the named insured's acts. Underwriters evaluate additional-insured requests carefully because each addition widens the policy's exposure, potentially increasing claims and complicating subrogation rights. The certificate of insurance that accompanies the endorsement serves as evidence to the additional insured that it has been added, though the certificate itself does not confer coverage—only the endorsement does.
📌 Getting the additional-insured mechanism right is a significant operational and risk-management concern for carriers, brokers, and MGAs alike. Disputes over whether an additional insured's claim falls within the endorsement's scope are among the most litigated issues in liability insurance. For insurtechs building automated policy-issuance and certificate management platforms, properly structuring additional-insured workflows—including real-time endorsement generation and compliance tracking—has become a key product differentiator.
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