01/28/2026
01/28/2026
01/27/2026
01/27/2026
01/27/2026
01/27/2026
01/27/2026
01/27/2026
Labeling List Changes Effective March 1, 2026
Effective March 1, 2026, the Postal Service™ will revise Labeling List(s) L001, L002, L004, L005, L007, L009, L012, L015, L016, L051, L201, L601, L605, 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 March 1, 2026, effective date through April 30, 2026, expiration date. The changes will be published in the Postal Bulletin, Issue #22696.
01/27/2026
Updated List: Service Type Codes for Intelligent Mail® Package Barcode (IMpb)
This document provides the updated service type codes for Intelligent Mail® Package Barcodes.
01/26/2026
01/26/2026
01/26/2026
01/26/2026
01/26/2026
01/24/2026
01/24/2026
01/23/2026
01/23/2026
01/22/2026
01/22/2026
01/22/2026
01/22/2026
01/22/2026
01/21/2026
Publication 205 eVS Electronic Verification System Pre-certified
Software certified for mailers to use eVS for parcel shipping:
*Precertified for file format.
*Precertified for labels.
01/20/2026
01/20/2026
01/20/2026
01/20/2026
01/20/2026
01/18/2026
01/17/2026
01/17/2026
01/17/2026
01/17/2026
01/16/2026
01/16/2026
01/16/2026
01/16/2026
01/16/2026
01/16/2026
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Operation Codes List
This spreadsheet provides a list of operation codes (opcodes), also known as Scan Event Codes, for the IV-MTR application.
01/16/2026
Presort Accuracy, Validation, and Evaluation (PAVE™) Certified Products List
This document provides a listing of all PAVE™ certified products.
01/15/2026
01/15/2026
01/15/2026
01/15/2026
01/15/2026
01/15/2026
01/15/2026
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
01/14/2026
01/14/2026