In the major new report "RFID for the Postal and Courier Service", IDTechEx estimate that the global market for RFID systems, including tags, in this sector will be $3 billion in 2016. It could be much bigger if current efforts to tag individual items gain widespread acceptance. In due course, over one trillion postal items will be tagged yearly, making this the second largest application of RFID in the world after the retail supply chain.