04/27/2026
04/27/2026
04/27/2026
Labeling List Changes Effective June 1, 2026
Effective June 1, 2026, the Postal Service™ will revise Labeling List(s) L007, L012, L014, L015, 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 June 1, 2026, effective date through July 31, 2026, expiration date. The changes will be published in the Postal Bulletin, Issue #22702.
04/27/2026
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04/27/2026
Move to Competitive Street Addressing (MTC SA) List
This .txt file contains the MTC SA List.
04/26/2026
04/24/2026
04/24/2026
04/24/2026
04/24/2026
04/24/2026
04/24/2026
04/24/2026
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Development Tracker
This document provides a list of active IV-MTR work to be as well as items completed in FY25.
*Please note, Postal Pro is the only source for a current IV-MTR Development log as updates will be made on an ongoing basis.
04/24/2026
USPS Ship (Formerly Package Platform) through IV-MTR® Data Delegation Request
This form allows a Delegating Company (i.e., Mailer ID [MID] Owner) to provide authorization for delegation of USPS Ship (Formerly PPC) data visibility to a Receiving Company within the IV-MTR application.
04/24/2026
Enterprise Payment System (EPS) through IV-MTR® Data Delegation Request
This form allows a Delegating Company (i.e., Mailer ID [MID] Owner) to provide authorization for delegation of Enterprise Payment System (EPS) data visibility to a Receiving Company within the IV-MTR application.
04/24/2026
Informed Visibility® Mail Tracking & Reporting (IV®-MTR) Release Notes
These release notes summarize new features and enhancements implemented in deployments to the IV-MTR application.
04/24/2026
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.
04/23/2026
04/23/2026
04/23/2026
RDI™ Cycle O: Certified Products Guide (D) - (Expires July 31, 2028)
This document outlines the CASS/MASS certified vendors list for RDI™ Cycle O.