A MID is required for the IMb tracking code. New MIDs are assigned through centralized USPS® processes, generally through the MID system at https://gateway.usps.com/eAdmin/view/signin (Business Customer Gateway).
Once the encoder and font are installed, verify the print quality by producing samples, as instructed in the encoder package. The Intelligent Mail Barcode 4-State Specification USPS-B-3200 and the Intelligent Mail Barcode Technical Resource Guide on PostalPro provide extensive technical information about IMbs.
