Create a USPS.com (registered trademark symbol) account to print shipping labels, request a Carrier Pickup, buy stamps, shop, plus much more. Chapter 1: Our Mission The Postal Service’s mission is to provide the nation with reliable, affordable, universal mail service. The basic functions of the Postal Service were established in 39 U.S.C. § 101 (a): “.. to bind the Nation together through the personal, educational, literary, and business correspondence of the people. It [the Postal Service] shall provide prompt, reliable. Small businesses: Save money on shipping and direct mail marketing with promotion discounts and other USPS business rate and product options. USPS Informed Delivery This includes the following limited circumstances: to a congressional office on your behalf; to financial entities regarding financial transaction issues; to a U.S. Postal Service auditor; to entities, including law enforcement, as required by law or in legal proceedings; and to contractors and other entities aiding us to fulfill the service. Welcome to USPS.com. Track packages, pay and print postage with Click-N-Ship, schedule free package pickups, look up ZIP Codes, calculate postage prices, and find everything you need for sending mail and shipping packages. Shop our selection of Shipping Supplies on the USPS.com Postal Store USPS.com - Login. Login Services at the Milwaukee Post Office Service hours may vary. For all location services, see all hours. Everyone living in the United States and its territories has access to postal products and services and pays the same for a First-Class Mail postage stamp, regardless of location. For 250 years, we’ve been making the connections with friends and families and businesses and customers.