They are scanning the PDF 417 barcode on the back. Here are the specs for what appears on the driving license/ID and how to read the barcode: https://www.aamv

They are scanning the PDF 417 barcode on the back. Here are the specs for what appears on the driving license/ID and how to read the barcode: https://www.aamva.org/getmedia/99ac7057-0f4d-4461-b0a2-3a5532e1b35c/AAMVA-2020-DLID-Card-Design-Standard.pdf https://www.aamva.org/getmedia/99ac7057-0f4d-4461-b0a2-3a553... They issue a new spec every 4 years.