USPS stands for United States Postal Service. 1. What does USPS stand for?USPS stands for United States Postal Service. 2. When was USPS established?USPS was established on July 1 1971. 3. What is the role of USPS?The role of USPS is to provide postal services to the citizens of the United States including delivering mail… Continue reading what does usps stand for?