Announcements
09/29/2026
09/29/2026
Announcements
09/29/2026
09/29/2026
Release Notes
09/29/2026
09/29/2026
Announcements
09/28/2026
09/28/2026
Announcements
09/28/2026
09/28/2026
Announcements
09/28/2026
09/28/2026
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09/28/2026
Labeling List Changes Effective November 1, 2026
Effective November 1, 2026, the Postal Service™ will revise Labeling List(s) L001, L007, L012, L201, and L606 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings inducted on or after the November 1, 2026, effective date through December 31, 2026, expiration date. The changes will be published in the Postal Bulletin, Issue #22713.
Data Files
09/28/2026
09/28/2026
USPS Ship Data Dictionary
Detailed information on the USPS Ship (Formerly Package Platform) data elements available through the Informed Visibility Mail Tracking & Reporting (IV-MTR) application. Please note that items in bold text were updated or added recently.
Announcements
09/25/2026
09/25/2026
Announcements
09/25/2026
09/25/2026