This International Standard establishes an AEI system based on radio frequency technologies.This systemis intended for general application in RTTT/TICS. It allows the transfer of the identification codes and furtherinformation about equipment and vehicles used in intermodal transport into such RTTT/TICS and informationsystems related to intermodal transport processes. Within the intermodal context of the RTTT/TICS Sector, AEIsystems have the specific objective of achieving an unambiguous identification of an ITU or related equipmentor vehicle or item used in intermodal transport, and to make that identification automatically. Vehicles will beconsidered and handled under Intermodal aspects as “Intermodal Equipment”. Therefore, a differentiationbetween AEI and AVI systems for the purpose of this standard is not required.