The Mailer Identifier (MID) is a field within the Intelligent Mail barcode that is used to identify mailers. MIDs are assigned by the USPS^® to a Mail Owner, Mailing Agent or other service providers who request them.

To participate in Full-Service Intelligent Mail^®, mailers must submit information electronically. This computer-consumable version replaces existing hardcopies and includes the following: postage statement and qualification report.

To ensure accuracy, optimal bar code quality and readability of the Intelligent Mail^® Tray Label, the USPS^® offers a voluntary label certification process of the Intelligent Mail Tray Label for software vendors that generate tray label software. This certification process will validate the Intelligent Mail Tray Label design specifications, technical barcode requirements for the tray barcodes, placement of the barcode and human-readable data elements on the label, as well as the ability to generate accurate label content.

Seamless Acceptance automates the entry and verification of commercial mailings by leveraging electronic documentation, Intelligent Mail barcodes (IMbs), and information collected from handheld sampling devices and mail processing equipment scans.

The electronic Induction (eInduction) process simplifies the induction of drop shipments and expedited plant load mailings by leveraging existing eDoc, Intelligent Mail Container barcode (IMcb), and handheld scanner technologies to verify payment and preparation of commercial mail containers.

OneCode ACS allows customers mailing First-Class Mail^®, Standard Mail^®, and Periodical flats or letters to receive electronic or automated address corrections using the Intelligent Mail^® barcode.