The app "Grüner Pass" is based on the open source app "COVID Certificate" developed by the Federal Office of Information Technology, Systems and Telecommunication (FOITT) on behalf of the Federal Office of Public Health (FOPH) in Switzerland and was further developed by the Federal Computing Center for use in Austria.
The Austrian Grüner Pass app enables the secure storage of EU-compliant SARS-CoV-2 certificates from Austria on your mobile phone and facilitates their presentation during a check of 3-G proof and in international travel.
The Austrian Federal Computing Center (BRZ from German Bundesrechenzentrum) operates the app on behalf of the Federal Ministry of Social Affairs, Health, Care and Consumer Protection (BMSGPK from German Bundesministerium für Soziales, Gesundheit, Pflege und Konsumentenschutz).
To learn how to obtain your SARS-CoV-2 certificate, visit To add a SARS-CoV-2 certificate to the Grüner Pass App, you will need the original paper certificate or PDF document issued to you.
SARS-CoV-2 certificates are issued in Austria in paper or electronic form (PDF) and serve as 3-G proof (vaccinated, recovered, tested).