This summer, the 27 nations of the European Union are finally reopening to tourists—including American ones—following lengthy closures of borders due to the pandemic.
To facilitate ease of movement while keeping citizens safe, member states are issuing EU Digital Covid Certificates (sometimes referred to as "Digital Green Certificates" or "Digital Green Passes") for travelers to use at borders. These digital certificates prove that the holder has been vaccinated against Covid-19, has received negative test results for the virus, or has recovered from it.
Although the certificates were devised for use by EU citizens, visitors from the U.S., the United Kingdom, and elsewhere may also be permitted to use the system, EU
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The EU’s Digital Covid Certificate: Can American Travelers Get One? | Frommer's
