usps ground advantage requirements are the eligibility rules and packaging standards associated with USPS’s rebranded Ground Advantage service. This offering combines several legacy services into one streamlined ground shipping option. Businesses must comply with weight limits, labeling standards, and non-hazardous contents rules. Fulfillment services that stay current with USPS updates can ensure orders qualify, avoid extra fees, and use the service effectively to offer low-cost shipping across the U.S.