DIN CEN/TS 15844-1 DIN SPEC 66294-1:2011-03

This standard defines the information content, structure and possible printed representations of the UPU ID tag ). This is an identifier for individual mail items which: a) is globally unique; b) can be applied to any item which is not already ID-tagged by any postal administration (or other issuer) which previously processed the item; c) can be read, with a high degree of reliability, by any postal handling organisation possessing appropriate equipment. The UPU ID-tag defined in this standard may be placed on items so that, in subsequent processing, individual items can be recognised and associated with computer-based information relating to the item concerned. A key purpose of the standard is to allow information about items to be exchanged between postal handling organisations. Such exchange will take place through the electronic communication of messages (e. g. EDI messages), or through the exchange of computer files.