RFID Standards in the Logistics Chain: Technology to Enhance Freight Transportation Security and Productivity ...

From FHWA Freight Management and Operations, - A-4. Standards ...

... "Radio frequency issues are closely related to the standards issues. Global supply chain security and efficiency are best served with consistent global frequencies. However, there is no single frequency available for logistics applications across the major trading theaters (Asia, Europe, and North America). An added complexity is that two frequencies may be needed, one for passive RFID applications and another for active applications. Both passive and active have valid roles, but cannot operate on the same frequency in the same place and time without interference." ...