What is priority mail

Priority Mail® is our bestselling mail service. Domestic deliveries arrive in 1-3 business days3 depending on where your package starts and where it's going. Tracking and insurance are included, shipping boxes and envelopes are free, and with Priority Mail Flat Rate®, you don't need to weigh shipments 70 lbs and under.

answerpublish a notice of the proposed rulemaking proceeding in the federal register;