Announcements
04/03/2026
INFORMATIONAL - USPS APIs System Deployment April 12, 2026
Release Notes
04/03/2026
PTR2 Release Notes_DD_04_02_26
Release Notes
04/03/2026
PTR2 Release Notes_DD_04_04_26
Announcements
04/02/2026
DELIVERY - Southern Area - Texas 3 District - Los Jardines Post Office (78237) - Temporarily Suspended
Announcements
04/02/2026
INFORMATIONAL -Upcoming USPS.com Maintenance CANCELLED
Announcements
04/02/2026
DELIVERY Resumption of Mail Service to Lebanon- Effective April 3, 2026
Publications
04/02/2026
PCC Events (April 2026)
Data Files
04/02/2026
Undeliverable-as-Addressed (UAA) Statistics by Mailing Industry Quarterly Report (Q2 FY26)

ACS Nixie stats by industry for FY26 Q2.

Publications
04/02/2026
Publication 199: Intelligent Mail Package Barcode (IMpb) Implementation Guide for Confirmation Services and Electronic Payment Systems
Announcements
04/01/2026
INFORMATIONAL - USPS Modernization Through Package Equipment Upgrades in April 2026
Announcements
04/01/2026
INFORMATIONAL - Atlantic Area AIM Meeting June 2, 2026
Data Files
04/01/2026
March 2026 Nixie Volume

This spreadsheet contains the UAA statistics for March 2026.

Announcements
04/01/2026
INFORMATIONAL - Federal Register - Manifest Mailing System Retired April 1, 2026
Presentations
03/31/2026
Pop-Up Mini Café: Brewed for Business: The Shipping Mini Café

 

Pop-Up Mini Café: Brewed for Business: The Shipping Mini Café

Passcode: 5T8K2$*L

Announcements
03/31/2026
DELIVERY - Southern Area - Puerto Rico District - Moca Post Office (00676) - Suspended
Announcements
03/31/2026
INFORMATIONAL - USPS Package Tracking Access Control Implementation (Effective Wednesday, April 1, 2026)
Announcements
03/31/2026
DELIVERY - Atlantic Area Easton Post Office (18042) - Closed Until Further Notice
Announcements
03/31/2026
INFORMATIONAL: Mail Spoken Here March 2026 Issue
Announcements
03/30/2026
INFORMATIONAL - USPS APIs System Maintenance April 15 Release
User Guides
03/30/2026
USPS APIs Terms and Conditions

ACKNOWLEDGEMENT AND ACCEPTANCE. Read this carefully before registering to use the USPS API services. By utilizing the APIs, you hereby ACCEPT ALL of the terms and conditions of this Agreement. 

Release Notes
03/29/2026
March 29 2026 PostalOne! Release Notes
Release Notes
03/27/2026
PTR2 Release Notes_DD_03_27_26
Release Notes
03/27/2026
PTR2 Release Notes_DD_03_29_26
Data Files
03/27/2026
Labeling List Changes Effective May 1, 2026

Effective May 1, 2026, the Postal Service™ will revise Labeling List(s) L007, L012, L014, L016, L051, 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 May 1, 2026, effective date through June 30, 2026, expiration date. The changes will be published in the Postal Bulletin, Issue #22700.

Announcements
03/26/2026
PCC Voice Challenge #PCCRepost