The European Commission has proposed to introduce 450 million coronavirus passes for residents, which enables free travel across the bloc by mid-June.
Formally known as digital green certificate, it would facilitate safe free movement of citizens inside the EU during the COVID-19 pandemic in a non-discriminatory way, the bloc said.
"With this digital certificate, we aim to help member states reinstate the freedom of movement in a safe, responsible, and trusted manner," European Commission President Ursula von der Leyen said on Wednesday.
"A digital green certificate is a proof that a person: has been vaccinated against COVID-19, recovered from COVID-19, or received a negative test result," according to the EU. "It will be available free of charge as an electronic or paper version and will include a QR code to ensure authenticity."
EU countries are expected to discuss the proposal at the next European Council meeting on 25 March.