Glossary
Additional Insured
Additional insured wording is a common certificate request, but it is more than listing a company name on a COI.
Plain-English summary
An additional insured is a party given certain insured rights by endorsement when the policy supports it. Contract wording should be sent to the agent before the carrier promises it.
Where it shows up
Brokers, shippers, building managers, project owners, and equipment lessors may request additional insured status in contracts or certificate instructions.
Why it matters
The request may require an endorsement, insurer approval, and sometimes a premium or underwriting review.
Who sees this in certificate requests
- Owner-operators reading a quote
- New authorities preparing documents
- Small fleets reviewing certificates or claims
Why wording matters
- Where the term appears
- How to discuss it with an agent
- Why the definition can affect coverage
Where COI wording gets overread
What the wording does not prove
- A standalone guarantee of coverage
- A substitute for policy wording
- Legal advice about a contract
Certificate request mistakes
- Treating informal shorthand as policy language
- Assuming the same word means the same thing in every policy
Documents to compare
- Policy declarations
- Certificates
- Endorsements
- Contracts or official filing notices when relevant
Questions before issuing wording
- Where is this term defined in the policy?
- Does an endorsement change the meaning?
- Does a regulator or contract use the term differently?
Sources
- Auto Insurance Regulator National Association of Insurance Commissioners — checked 2026-05-19
- Commercial Auto Insurance Educational Insurance Information Institute — checked 2026-05-19
Questions carriers ask
Is certificate holder the same as additional insured?
No. Certificate holder status generally means receiving proof or notice. Additional insured status requires policy support.
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