- barcode (BC) - A series of vertical bars and spaces that represent any numerical series, most often a correct ZIP Code for the delivery address on a mailpiece. The barcode facilitates automated processing by barcode readers and scanners. Barcodes that may be used for postal processing are POSTNET, Interleaved 2-of-5, Code 39, Code 128, and UCC/EAN Code 128. (Also see delivery point barcode and Postal Numeric Encoding Technique.)
Glossary of postal terms. 2014.