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August 29, 2008
It’s an essential part of the Intelligent Mail Barcode
A Mailer ID is your key to getting data about your mailings using the Intelligent Mail barcode. The Mailer ID is a field within the IMB, and it’s used to identify mailpieces, trays, sacks, and containers.
You can apply for a Mailer ID at your Business Mail Entry Unit or through your local Mailpiece Design Analyst. Find the nearest office using the postal locator tools on Postal Explorer at pe.usps.com (click on “Postal Locators” in the left frame).
Information about the application process is available at ribbs.usps.gov. Click on “Intelligent Mail/Mailer ID Application” in the left column. You can also download a form and instructions to help speed the application process.