08/26/2025
Publication 401: Guide to the Manifest Mailing System
The USPS is amending Mailing Standards of the United States Postal Service, Domestic Mail Manual (DMM) subsection 703.2.0 to retire the manifest mailing system (MMS). Effective April 1, 2026. Please see here for more information.
07/30/2025
06/30/2025
06/27/2025
Labeling List Changes Effective August 1, 2025
Effective August 1, 2025, the Postal Service™ will revise Labeling List(s) L002, L004, L005, L007, L010, L012, L601, L605, and L606 to reflect changes in mail processing operations.
06/02/2025
05/30/2025
05/02/2025
04/30/2025
02/28/2025
02/26/2025
Labeling List Changes Effective April 1, 2025
Effective April 1, 2025, the Postal Service™ will revise Labeling List(s) L003, L011, L012, L015, L051, and L801 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings inducted on or after the April 1, 2025, effective date through May 31, 2025, expiration date. The changes will be published in the Postal Bulletin, Issue #22672.