4-2 Barcode Requirements and Label Elements

4-2.1 Barcode and Label Requirements

Barcoded shipping labels are required on all mailpieces and must follow the printing requirements specified in Appendix J. Each shipping label must contain a unique PIC that matches the PIC used in the electronic file.

Shipping labels must conform to the specifications noted in chapter 4 and in Appendix K (for domestic Priority Mail Express service) to ensure that each piece receives Priority Mail Express service and that the USPS scanners can read the barcode on the shipping label.