This International Standard defines the basic features of RFID for use in the supply chain when applied to returnable transport items (RTIs). In particular it— provides specifications for the identification of the RTI and the returnable packaging item (RPI),— makes recommendations about additional information on the RF tag,— specifies the semantics and data syntax to be used,— specifies the data protocol to be used to interface with business applications and the RFID system,— specifies the minimum performance requirements,— specifies the air interface standards between the RF interrogator and RF tag, and— specifies the reuse and recyclability of the RF tag.