With international travel set to reopen next month, people have started planning potential summer holidays or trips abroad to see loved ones.
The EU Digital Certificate will be available in all Member States from July 1, and will see free movement facilitated for EU citizens.
From July 19, Ireland hopes to operate the system for travel within the EU, meaning passengers arriving into Ireland with a Cert will not have to undergo quarantine.
The Cert is digital proof that a person has either been vaccinated against, received a negative test for, or recovered from Covid-19.
All Member States will accept the Cert, which will ensure that restrictions will be lifted across Europe in a coordinated way.
But who is already ready and waiting to accept tourists?
EU countries are currently in three categories. Those already issuing certs, those ready to connect, and those who are still in the testing phase.
These are countries issuing certs already:
Austria
Bulgaria
Croatia
Czechia
Denmark
Estonia
Germany
Greece
Latvia
Lithuania
Poland
Spain
While these countries have begun issuing Certs, the majority of EU countries are categorised as 'technically ready' to connect to the EU Digital Covid Cert Gateway.

Free travel will resume in these countries on July 1 depending on the country's own restrictions.
The EU countries ready to connect:
Belgium
Cyprus
France
Ireland
Italy
Luxembourg
The Netherlands
Portugal
Romania
Slovakia
Slovenia
Sweden
Non EU countries ready to implement the Certs:
Liechtenstein
Switzerland
Iceland
Norway
And finally, these are the countries still in the test phase:
Finland
Hungary
Malta
The Digital certs are free of charge, available to all, and will be issued by National Authorities and can be stored on a mobile device.
A paper version can also be requested, as both will contain a QR code and digital signature to ensure authenticity.
Holders of the Cert will be exempt from free movement restrictions.