Data Files
11/09/2026
Move to Competitive Street Addressing (MTC SA) List

This .txt file contains the MTC SA List.

Applications/ Forms
11/09/2026
Additional Accounts Information

Additional Accounts Information sheet for completion with Mailer ID (MID) Application.

Applications/ Forms
11/09/2026
Mailer Identifier (MID) Application

Complete the following application to request a Mailer Identifier (MID) for use in the Intelligent Mail® container barcode, Intelligent Mail® tray barcode, or Intelligent Mail® barcode. The information provided will not be disclosed outside the Postal Service.