Release Notes
05/27/2026
PTR2 Release Notes_DD_05_26_26
Publications
05/27/2026
Labeling List Changes Effective July 1, 2026

Effective July 1, 2026, the Postal Service™ will revise Labeling List(s) L001, L007, L009, L012, L016, 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 July 1, 2026, effective date through August 31, 2026, expiration date. The changes will be published in the Postal Bulletin, Issue #22704.


 

Announcements
05/27/2026
INFORMATIONAL - July Price Change 2026 - Commercial System Releases June 28, 2026
Announcements
05/27/2026
INFORMATIONAL - Scheduled Commercial System Release - June 28, 2026
Announcements
05/26/2026
PROCESSING AND DISTRIBUTION - Western Region – Tucson, AZ P&DC - Power Outage
Data Files
05/26/2026
***Updated - New Areas*** - Area District 5-digit ZIP Codes (AREADIST_ZIP5.TXT)
Data Files
05/26/2026
City/State ZIP Code Weekly Compare
Contact Lists
05/26/2026
Mail Service Provider (MSP) - Full-Service Certified Mailers

A Mail Service Provider (MSP) offers a variety of solutions to prepare and present Full-Service presort mailings. For more information regarding Certified MSPs, please follow this link: https://postalpro.usps.com/full-service-cert/fact-sheet

 

Data Files
05/26/2026
3 Digit ZIP/AISU Office List (AISUREPT.TXT)
Data Files
05/26/2026
AIS Congressional District File (CONG_DIST.TXT)