As the SWIPE barcode decoder is used, we will keep track of what types of information each state stores in its 2D barcodes and make this research available to you. It is a state-by-state decision what information (if any) to electronically store on drivers' licenses and state standards change frequently. We don't exactly know since there are over 200 state-issued drivers' licenses currently in circulation and not a lot of available documentation. Currently 39 states include a 2D barcode on the backside of state-issued drivers' licenses. Specifically 2D barcodes can hold about 2,000 bytes of data, or enough to encode some text and a compressed image file. The 2D barcode stores data along two dimensions and is therefore capable of containing much more information than the 1D barcode (seen on many food products) or the magnetic stripe (seen on credit cards and some drivers' licenses).
Some states are considering using smart card technology or a computer chip. Other technologies used are magnetic stripes and 1D barcodes. What will future drivers' licenses look like?ĢD barcode technology is currently the most popular method for state DMVs (Department of Motor Vehicles) to store personal information on a driver's license. What information is encoded on my driver's license? 2D Barcode Info ABOUT the 2D BARCODE AND YOUR DRIVER'S LICENSE