Publications
02/28/2025
Publications
02/26/2025
Labeling List Changes Effective April 1, 2025

Effective April 1, 2025, the Postal Service™ will revise Labeling List(s) L003, L011, L012, L015, L051, and L801 to reflect changes in mail processing operations. Mailers are expected to label according to these revised lists for mailings inducted on or after the April 1, 2025, effective date through May 31, 2025, expiration date. The changes will be published in the Postal Bulletin, Issue #22672.

Publications
02/13/2025
Publication 401: Guide to the Manifest Mailing System

This publication provides information on the Manifest Mailing System, which automates the documentation of postage and fees for all pieces in a mailing paid via permit imprint indicia.

Publications
01/28/2025
Labeling List Changes Effective February 1, 2025

Effective February 1, 2025, the Postal Service™ will revise Labeling List(s) L007, L012, 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 February 1, 2025, effective date through March 31, 2025, expiration date. The changes will be published in the Postal Bulletin, Issue #22667.

Publications
12/05/2024
Appendix C: ACS™ Product Code Information and Details

This document provides ACS™ Product Codes, descriptions, classifications, shapes, and fees.

Publications
11/27/2024
Publications
11/27/2024
Publications
11/15/2024
Publications
10/09/2024