This International Standard defines a generic AVI/AEI System specification for nominal AVI/AEI to provide anenabling International Standard, which, whilst allowing the system specifier to determine the performancelevels and operating conditions, provides a framework for nominal interoperability.Within the road context of the Transport and Traffic Telematics Sector, AVI and AEI systems have the specificobjective of achieving a unique or unambiguous positive identification of a vehicle or item of equipment, and tomake that identification automatically.Whilst AVI may also be seen as an essential component of some applications, the particular needs of suchsyste