What is USPS validation?

USPS validation is a process that checks addresses against the United States Postal Service (USPS) database to ensure they are accurate, complete, and deliverable. This helps prevent issues such as returned mail or undelivered forms. USPS validation is a process that checks addresses against the United States Postal Service database to ensure they are accurate, complete, and deliverable. This helps prevent issues such as returned mail or undelivered forms.