Tesco have announced plans for requiring their suppliers to use RFID tags by 2006, except that they are trying to call them Radio Barcodes
Their published plans for suppliers only mention case level tagging up to the year 2008
Does this mean that Tesco have abandoned their plans for consumer item level tagging of goods in the supermarket itself ? Well, not necessarily, since their What are Radio Barcodes ? page clearly shows Smart Shelves in the actual supermarket, and no means of "killing" the RFID tags at the checkout.
They claim that they will be using UHF epcglobal Class 1 tags i.e. a 96bit serial number, with a measly 8 bit password to operate the challenge response security.