ID-tagging of letter mail items
Postal services – ID-tagging of letter mail items – Part 5: 4-state encoding specification for small letters
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This part of the Technical Specification defines the representation of ID-tags as a Postal-4i symbology 4-state bar code printed on the front side of small letters.
Postal-4i symbology 4-state encoding is the only encoding specification supported by this Technical Specification ) for the printing of ID-tags on the front of items.
NOTE Representation in the form of fluorescent BNB bar codes printed on the reverse side of small letters (not flats) is covered in CEN/TS 15844-2 and CEN/TS 15844-3.