The renewal of school ID cards with an ISIC license (revalidation) is now done exclusively digitally; there is no visual revalidation with a hologram or thermal printing. To renew the license, it is necessary to visit the CTU Card Center, where the license will be extended on-site. Online renewals are not yet available. More information about digital revalidation can be found on the ISIC website: https://www.isic.cz/en/article/extending-your-card-without-a-revalidation-sticker-how-it-works-and-where-it-s-possible