The three policies to verify
General liability ($1M per occurrence minimum), workers' compensation (state-mandated for staffed vendors), and liquor liability (caterer or bar vendor only). Photographers, florists, and DJs typically only need general liability.
Why expiration tracking matters
Policies expire annually. A vendor booked 14 months out will have insurance lapse before the wedding date unless the renewal is tracked. The Accountability Matrix flags any insurance expiring before the wedding date.