Modeling the New USPS Delivery Network: List & Map Sept. 15, 2022 By Steve Hutkins This month the Postal Service will begin implementing a massive initiative to change how the mail is delivered. Instead of working out of the back of post offices, letter carriers will be relocated to large, centralized facilities called Sorting & Delivery Centers. These S&DCs will … Continue reading Modeling the New USPS Delivery Network: A List & Map