When a policy renewal drops your additional insured or waiver of subrogation endorsement and breaks a GC job requirement, fix it in 4 steps: pull the subcontract's insurance exhibit, compare it line-by-line against your new certificate of insurance (COI), tell your agent exactly which endorsement to reinstate by form number (CG 20 10, CG 20 37), and issue a corrected COI with the endorsements attached. Most agents can re-endorse and reissue within 24 to 72 hours. The COI is proof, not coverage, so the endorsement forms must actually be on the policy before the GC accepts it.
Last updated: October 2026.
TL;DR
- A renewal that silently drops additional insured or primary and non-contributory is a common cause of a GC compliance-portal rejection at renewal time.
- Fix is a 4-step workflow: exhibit → line-by-line compare → endorsement request by form number → corrected COI. Agent turnaround is typically 24 to 72 hours.
- A COI is evidence only. The GC needs the actual endorsement forms (CG 20 10 ongoing ops, CG 20 37 completed operations) attached, not just a checkbox on the certificate.
- Before requesting re-endorsement, confirm your subcontract's exhibit matches your current carrier's endorsement forms — broker websites and the ACORD endorsement library are free verification sources.
Methodology: This guide compares the standard insurance exhibit terms in a signed subcontract against the endorsement forms a carrier issues at renewal. It relies on published ISO/CG form numbers, ACORD certificate standards, and state insurance department guidance on COI acceptance — all cited and dated below. It is a neutral fit-first reference, not a purchase recommendation. Verify every form against your own policy and broker before acting.
What is an endorsement, and why does a renewal break it?
An endorsement is a form that amends your policy; a certificate of insurance (COI) is a one-page summary that proves what the policy says. When your carrier renews, it issues a new policy with new forms. If the renewal underwriter re-rated you, moved carriers, or re-templated the policy, a blanket or scheduled additional insured endorsement from last year can quietly fall off. The COI then shows different terms than the subcontract you already signed.
That is the exact failure behind two searches contractors type at 7am: policy renewal dropped additional insured and new coi does not match old subcontract. The subcontract did not change. Your policy did.
Definition box — the four terms a GC exhibit checks:
| Term | What it means | Evidenced by |
|---|---|---|
| Additional insured | The GC is covered as an insured under your policy for your work | CG 20 10 (ongoing), CG 20 37 (completed ops) |
| Primary and non-contributory | Your policy pays first; the GC's policy does not chip in | Policy endorsement language |
| Waiver of subrogation | Your carrier gives up the right to recover from the GC | Waiver endorsement form |
| Completed operations | Coverage survives after the job is finished | CG 20 37 specifically |
These four terms are contract and policy mechanics: read them from your own exhibit and your own policy forms.
Authority references (verify these yourself):
- NAIC — Understanding Certificates of Insurance (National Association of Insurance Commissioners; consumer guidance accessed October 2026) — explains that a COI is evidence of coverage, not a contract conferring rights.
- ACORD Certificate of Insurance resources (ACORD forms library, accessed October 2026) — the ACORD 25 certificate format and endorsement attachment standards many GC portals require.
- Insurance Information Institute — Commercial Liability Basics (III, accessed October 2026) — background on CGL coverage and how endorsements modify it.
- California Department of Insurance — Certificates of Insurance guidance (CDI, accessed October 2026) — representative state-department statement that a certificate cannot amend, extend, or alter the policy itself.
Step 1: Pull the insurance exhibit from the subcontract you signed
Start with the record you already agreed to, not the renewal paperwork. The subcontract's insurance exhibit — often an attached schedule labeled "Exhibit C: Insurance Requirements" or similar — is the controlling document. It lists exactly what the GC requires: minimum limits, the additional insured requirement, primary and non-contributory language, waiver of subrogation, and whether completed-operations coverage must survive the job.
Open the executed PDF and locate that exhibit. Copy out, in order:
- Required coverages and minimum limits (e.g., $1M per occurrence / $2M aggregate CGL).
- The additional insured requirement, including whether it specifies ongoing and completed operations.
- Primary and non-contributory wording.
- Waiver of subrogation in favor of the GC and any upstream owners.
- Any named-form requirements — many GC exhibits explicitly name CG 20 10 and CG 20 37.
If the exhibit names specific ISO form numbers, those are non-negotiable; the GC's compliance reviewer checks for them by number. If it uses descriptive language instead ("additional insured for ongoing and completed operations"), translate that to the matching forms yourself so Step 2 is a clean comparison. Keep this list open in a second window — it is your checklist for the rest of the workflow.
Step 2: Compare the exhibit line-by-line against your new COI
Lay the exhibit list next to the renewal certificate and check each line. Pull up the new COI (the ACORD 25) your agent issued at renewal and walk down your Step 1 checklist item by item.
For each requirement, confirm three things:
- The coverage and limit appear and meet or exceed the required minimum.
- The additional insured status is shown and backed by an attached endorsement form, not merely a checkbox or a "blanket per written contract" note with nothing attached.
- Primary/non-contributory and waiver of subrogation are indicated and supported by endorsement language.
Remember the NAIC point above: the certificate is evidence only. A box ticked on the ACORD 25 does not prove the endorsement is on the policy. If the certificate claims additional insured but no CG 20 10 / CG 20 37 is attached, treat it as missing. Flag every gap between the exhibit and the COI. A common gap after renewal is a dropped additional insured or completed-operations endorsement — the exact failures this guide addresses.
Step 3: Request reinstatement from your agent by form number
Tell your agent precisely which forms to add back — name the number, not the concept. Vague requests ("the GC needs us to add them as additional insured") produce slow back-and-forth. Specific requests move fast.
Send your agent:
- The gaps you found in Step 2.
- The exact form numbers required by the exhibit — typically CG 20 10 for ongoing operations and CG 20 37 for completed operations.
- The primary and non-contributory and waiver-of-subrogation requirements, quoted from the exhibit.
- The GC's full legal name and address as it must appear on the endorsement.
Ask the agent to confirm each form will be attached to the renewal policy, not just reflected on the certificate. Ask your agent whether reinstating the endorsement changes your premium before you authorize it. Most agents can re-endorse and reissue within 24 to 72 hours.
Step 4: Issue a corrected COI with the endorsements attached
Get the reissued certificate with the actual endorsement forms stapled to it, then submit to the GC's portal. Once the carrier adds the forms, your agent produces a corrected ACORD 25 plus copies of each endorsement (CG 20 10, CG 20 37, waiver, and P&NC language).
Before you upload:
- Confirm the endorsement PDFs are included, not just referenced.
- Verify the GC's legal name matches the exhibit and the endorsement exactly.
- Re-run your Step 1 checklist one final time against the corrected package.
Upload the complete package to the GC's compliance portal. Because the endorsements are now genuinely on the policy, the reviewer can match form numbers and clear the rejection. The COI is the proof the GC files; the endorsements are the coverage that proof points to — both must be present and consistent.
Before requesting re-endorsement, confirm your subcontract's exhibit matches your current carrier's endorsement forms — broker websites and the ACORD endorsement library are free verification sources. This is a neutral guide: don't authorize any re-endorsement or policy change until your own agent confirms the forms, the attachment, and any premium impact in writing. Verify all form numbers against your actual policy before relying on them.