European Commission
On 17 March 2021, the European Commission presented a proposal to create a Digital Green Certificate to facilitate the safe free movement of citizens within the EU during the COVID-19 pandemic.
Digital Green Certificates will be valid in all EU Member States.
European Commission: COVID-19: Digital green certificates - https://ec.europa.eu/info/live-work-travel-eu/coronavirus-response/safe-covid-19-vaccines-europeans/covid-19-digital-green-certificates_en
