"Primary and noncontributory" is the phrase that decides whose insurance pays first when a vendor's work causes a claim at your venue. Get it right and the vendor's policy carries the load; get it wrong and your own policy can end up sharing a loss that wasn't your fault.
The two words, decoded
- Primary — the vendor's policy pays first for a covered claim arising from their work, before your venue's own policy is touched.
- Noncontributory — the vendor's insurer won't require your venue's policy to contribute to that claim.
Together: the vendor's insurance responds first and in full (up to its limits), without pulling in yours.
Why it matters with additional insured
Being named additional insured puts your venue on the vendor's policy. But without "primary and noncontributory," the two insurers could argue about who pays and in what share — and your policy might end up contributing. The endorsement removes that ambiguity: the vendor's policy goes first and doesn't ask yours to chip in.
That protects two things venues care about: your policy limits (they aren't eroded by someone else's claim) and your loss history (which affects your renewal premium).
How it shows on a COI
Primary and noncontributory is added by endorsement and typically stated in the Description of Operations box:
"General Liability is primary and non-contributory where required by written contract."
It usually appears alongside the additional insured wording. As with other endorsements, the certificate reports it — the endorsement on the policy creates it.
What this means for your venue
If your contract requires it, look for the primary-and-noncontributory wording in the Description of Operations, not just the additional insured "Y." A certificate can name you as additional insured yet stay silent on primary and noncontributory, leaving room for the insurers to split a claim.
This is exactly the kind of wording check that's easy to overlook and simple for VenueCOI to flag. You can also check a certificate free or read how to read a certificate of insurance.