Named Insured vs. Additional Insured Under CG 00 01

A named insured is listed in the policy's declarations and holds all of the policy's rights and duties. An additional insured is an outside party added by endorsement, usually because a contract requires it, and gets narrower coverage: only for liability caused by the named insured's work, with no limits of its own and no say over the policy. Wherever the CGL says "you," it means the named insured.

Clients often ask why being added to someone else's policy is not the same as having their own. The clearest answer is the three tiers of insured status that CG 00 01 sets up, because additional insured status only makes sense as the bottom tier.

Who is an insured under CG 00 01?

An insured under CG 00 01 is any party in one of three tiers: a named insured listed in the declarations, an automatic insured under Section II, or an additional insured added by endorsement. The top tier is the named insured, each person or organization listed in the declarations, with all of the policy's rights and duties.

The middle tier is automatic insureds, who qualify through their relationship to the named insured. The type of entity decides who is on the list:

• Sole proprietorship: the named insured's spouse, but only for the conduct of the business.
• Partnership or joint venture: the partners and their spouses.
• LLC: the members and the managers.
• Corporation: the executive officers, directors and stockholders.
• Trust: the trustees.

Employees and volunteer workers are insureds while acting within their duties. The bottom tier is additional insureds, outside parties written onto the policy by endorsement because a contract requires it. No one moves between tiers without a change to the policy.

For a business buying its own coverage, the named insured is the entity whose operations need protecting. Menlo's general liability insurance page explains how to get a quote with the right entities named.

What special duties does the first named insured carry?

The first named insured is the carrier's single point of contact when a policy lists several named insureds. It pays the premium, receives any return premium and audit bill, is the only one who can request policy changes for every insured, and is the only party entitled to notice of cancellation or nonrenewal. Put the entity that actually reads carrier mail in that first slot, because a cancellation notice sent to an inactive holding company is still valid notice.

What does additional insured status cover, and where does it stop?

Additional insured status gives real coverage, which is what separates it from being a certificate holder, a position that only receives information. On the CGL it usually comes through CG 20 10 for ongoing operations, CG 20 37 for completed operations, or a blanket form triggered by a written contract. Once endorsed, the additional insured can tender a covered suit to the named insured's carrier and receive a defense paid outside the limits. With primary and noncontributory wording, its own policy sits excess. Our guide to additional insured endorsements covers the full set of forms and their wording traps.

Every grant in the endorsement comes with a limit. Coverage applies only to liability caused, in whole or in part, by the named insured's acts, omissions or work, so the additional insured's sole negligence is not covered under post-2004 ISO editions. New York's highest court showed what those words cost in Burlington v. NYC Transit Authority.^[1] In 2017 it held that "caused, in whole or in part" requires proximate causation by the named insured. The named insured's excavation machine had touched a live cable that NYCTA failed to identify, mark or turn off, and NYCTA acknowledged it was solely responsible. Burlington settled the injured worker's suit for $950,000, and the court held that the endorsement gave the Transit Authority no coverage. The additional insured brings no limits of its own. It shares the named insured's per occurrence and aggregate limits, has no authority over the policy, and gets no cancellation notice unless a separate endorsement adds one.

None of this shows on a certificate. Additional insured status is proven by the endorsement, while the ACORD 25 certificate is for information only and does not change the coverage. A certificate that claims status the policy never granted creates E&O exposure for the agency that issued it. According to IIABA's white paper Certificates of Insurance: Issues and Answers, about 1 in 25 agency E&O claims involves a certificate, and 36 percent of those come from failing to add or correctly identify an additional insured.^[2]

How do the two statuses compare side by side?

Every row in the additional insured column either narrows the coverage or removes a right the named insured keeps:

To verify a named insured, get the declarations page. To verify additional insured status, get the endorsement itself and compare your client's exact legal name with the name on its schedule. Adjusters read that schedule strictly and extend status only to the parties it names.

This guide is for educational purposes and summarizes standard ISO policy language. Your policy's specific terms, conditions, and endorsements control. Talk to a licensed broker about your actual exposures.

How to confirm which status you actually have

Confirm status from the policy documents, not the certificate. A named insured owns the policy and holds its full rights and duties. An additional insured gets a narrow slice of that coverage: liability from the named insured's work only, within shared limits, with no notice rights. Pull the declarations for a named insured and the endorsement for an additional insured, then read the granting language against the contract that required it.