The European Commission really doesn’t want this to be called a vaccine passport. They’re calling it a digital green pass or certificate, and this would essentially be in the form of a QR code—those funny little square barcodes that we’re all getting so used to seeing around in restaurants and things to scan and find a menu. The idea would be that this would be a personal QR code which would contain information for each individual to help them to travel. It would be either showing if the person has been vaccinated and, if so, with which vaccine, with what dosage and when that vaccination happened. Or it might show if you have had a negative coronavirus test… again, what kind of test, when that happened.