The relationship between RFID technology and ID cards is close and personal. While both types of identification work extremely well individually, their efficacy together is amazing. For example, while it is conceivable that even the best ID cards can be forged, or lost and used by unscrupulous individuals, a card using RFID technology offers numerous protections.

If a card is lost, but has an RID tag, it can easily be tracked. While this may not lead to the apprehension of the individual who originally took it, it could lead to the card itself, and any damages could then be reversed.

Another, simpler way that RFID technology helps in the use of ID cards is via readers, the strongest of which can scan information up to thirty meters or more away. This displaces the tedium of a physical reader and allows people in the area to use the system more effectively.

This is especially important in work environments and places like schools with a high volume of people. If people simply have to flash their card at a reader, this speeds up traffic a great deal. Besides work and school environments, RFID technology and ID cards work in many other ways as well.

A scenario that this combination would prove extremely capable at aiding would be traffic crossing tolls on bridges. An ID card could have an RFID tag that would allow for a prepaid toll card. The driver would then flash the card at the reader as they drove by; they would only have to slow down, not stop, and wouldn't have to fumble for change or money.

In fact, RFID tags are used in this way already, although without the ID card, in the Bay Area as an optional payment method for traffic crossing the Golden Gate Bridge. Called the 'FasTrak' the tag is mounted in the window and operates on a prepaid system so all the car has to do is slow down to be read and then continue on its way.

The areas in which ID cards and RFID technology can be combined and used are many, and their increasing use together portends greater levels of security for those in work, school and other environments.