A certificate holder is the person or organization that receives a certificate of insurance as evidence that you carry specific coverages. Being listed as a certificate holder on a COI does not provide any insurance coverage; it simply confirms that the named insured's policy exists and includes the coverages and limits shown. The certificate holder receives notification if the policy is cancelled, but the standard ACORD 25 language limits this notification to "endeavor to" notify, which is not a guarantee.
For roofing contractors, the most common certificate holders are general contractors, property owners, property managers, and government agencies issuing permits. When you receive a request for a COI, the requesting party provides their name and address to be listed in the certificate holder box. They may also request to be named as an additional insured, which is a separate and more significant designation that actually provides coverage rights under your policy.
Understanding the difference between a certificate holder and an additional insured is essential for contract compliance. A GC who is only a certificate holder has no coverage under your policy and cannot file a claim against it. A GC who is both a certificate holder and an additional insured receives the COI as proof of coverage and also has actual coverage rights for liability arising from your operations. When reviewing insurance requirements in a subcontract, determine whether the GC requires certificate holder status only (just wants proof of insurance) or additional insured status (wants actual coverage under your policy). Most commercial contracts require both.