Business is changing. The United States Postal Service is changing with it, so we can serve you and your customers right when you need it. We’re offering returns right from the doorstep, next-day and two-day shipping, and e-commerce that moves at the speed of now. Together, let’s discover new routes. The Postal Service, an essential federal service, is part of the nation’s critical infrastructure, delivering mail and packages to every home and business in the United States. USPS deliveries are lifelines, especially in rural areas and to senior citizens and the vulnerable.