A digital Covid certificate system intended to ease travel within the European Union became operational in seven countries on Tuesday — ahead of schedule — offering a preview of what could become a standard for post-pandemic global mobility.

The document, known as a digital green certificate, records whether people have been fully vaccinated against the coronavirus, recovered from the virus or tested negative within 72 hours. Travelers can move freely if at least one of those three criteria is met.

With new coronavirus cases dropping to below 20 a day, Israel on Tuesday retired its Green Pass system and will now allow equal access to restaurants, sports events, cultural activities and the like to vaccinated and unvaccinated citizens.

Restrictions on the sizes of gatherings have also been lifted.