The retailer implemented its RFID system in January 2005 after completing pilot programs at distribution centers in Dallas. A company official said last month that the number of Wal-Mart suppliers using RFID technology has more than tripled since the effort began, and more than 300 suppliers now ship RFID-tagged goods to 500 Wal-Mart facilities. By January 2007, the company expects 600 of its suppliers to be using RFID technology, with the number of Wal-Mart stores capable of handling RFID-tagged items doubling to about 1,000.