We have received reports that the Ukrainian Border Patrol stopped honoring US CDC vaccine cards as proof of vaccination today for some people. Some were allowed entry through the border with the vaccination cards but others were denied entry and needed the Vdoma app. If you are 18 or older, we recommend that you have a smart phone with service in Ukraine and the Vdoma app installed as a backup in case they do not accept your vaccination card. It is available for on the Apple app store and Google Play store.
Here is a guide on how to use the Vdoma app: