usps ground advantage insurance provides coverage for packages shipped through USPS Ground Advantage services. This insurance protects against loss or damage during transit, ensuring that businesses and consumers are compensated for the value of their items in the event of an issue. USPS Ground Advantage is a cost-effective shipping service for packages that are not time-sensitive, and the added insurance option provides peace of mind for valuable or fragile shipments. The coverage is typically limited based on the declared value of the item.