Announcements
04/03/2026
DELIVERY - WestPac Area - ID-MT-OR District - Office Temporarily Closed - North Bend Post Office
Announcements
04/03/2026
INFORMATIONAL - USPS APIs System Deployment April 18, 2026
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
Error Codes
04/03/2026
Known Issues List 4.3.2026
Release Notes
04/03/2026
USPS APIs Release Notes

For the latest updates, please review the USPS APIs Release Notes.

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
Destination Entry Service Standard Directory
Publications
04/02/2026
Combined Service Standard Directory-PRI
Publications
04/02/2026
Supplemental Service Standard Directory-PRI
Publications
04/02/2026
Supplemental Service Standard Directory-PKG
Publications
04/02/2026
Supplemental Service Standard Directory-PFC
Publications
04/02/2026
Supplemental Service Standard Directory-PER
Publications
04/02/2026
Supplemental Service Standard Directory-MKT
Publications
04/02/2026
Supplemental Service Standard Directory-GAL
Publications
04/02/2026
Supplemental Service Standard Directory-GAH
Publications
04/02/2026
Supplemental Service Standard Directory-FCM
Publications
04/02/2026
Combined Service Standard Directory-GAL
Publications
04/02/2026
Combined Service Standard Directory-PKG
Publications
04/02/2026
Combined Service Standard Directory-PFC