source   Last January the United States Postal Service introduced new tracking barcodes called the Intelligent Mail® package barcode (IMpb) for packages of any size or shape. This new tracking system is optional – for now. However; effective January 2015, utilizing the IMpb will be mandatory for all packages. At Mailing Methods, we have an assortment Read more about Deadline Quickly Approaching for Intelligent Mail® Package Barcode (IMpb)[…]