Fact Sheets
11/28/2023
CASS™ and MASS™ Certified Products Guide Cycle: 2023-2028
Fact Sheets
10/25/2023
Overnight Periodicals
Fact Sheets
10/16/2023
Sorting & Delivery Center (S&DC) Q&A
Fact Sheets
09/15/2023
Enterprise Payment System-ACS/AEC Factsheet

Customers invoiced through the National Customer Support Center can pay for Address Change Service (ACS) and Address Element Correction (AEC) using their Enterprise Payment Account.

Fact Sheets
08/31/2023
USPS Ship Unused Outbound Labels Refund Request Fact Sheet

Instructions and references for submitting a refund request in USPS Ship for unused outbound labels.