IMpb ACS

IMpb ACS allows parcel mailers that print the Intelligent Mail package barcode to receive an electronic address correction using the MID embedded in that barcode. Service requests must be registered in the ACS mailer profile retained and managed by the ACS Department at the National Customer Support Center in Memphis, TN. A customer might require additional MIDs if mailing multiple services and/or using multiple endorsements.

• IMpb ACS is available for use on parcels:
• First-Class Mail parcels and Priority Mail parcels.
• Periodicals mailed as parcels.
• Parcel Select.
• Package Services (including Library Mail, Media Mail).
• USPS Retail Ground.
• USPS Marketing Mail and Parcel Select Lightweight parcels.
• Bound Printed Matter (including Bound Printed Matter flats).

Shipper Paid Forwarding/Return (SPF/R) service is available for IMpb ACS parcels.

Technical information on IMpb ACS is available at https://postalpro.usps.com/address-quality/ACS — scroll down to the section titled “ACS Technical Guides.”

Technical information required to produce Intelligent Mail package barcodes is available at https://postalpro.usps.com/impbimplementationguide.

IMpb ACS billing is provided via NCSC Accounting.