Resources | PostalPro

Filter Resources

Release Notes
05/27/2026

PTR2 Release Notes_DD_05_28_26

Announcements
05/27/2026

INFORMATIONAL - Commercial System Releases (May 30 – June 5)

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

Release Notes
05/27/2026

USPS APIs Release Notes

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

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