This Technical Specification specifies a methodology that allows postal operators to define specific statements of mailing submission customised according to their environment and applications. The document defines information requirements for existing generic postal information processing applications related to major postal functions, namely operations, finance and marketing by specifically identifying the information that could be collected within the mailer""s domain and transmitted to the postal domain. In addition, this document defines the organisation of data into messages by describing data content, format and communication protocol suitable for co