It looks like American tourists who have been fully vaccinated may be able to visit the European Union as early as summer 2021, according to the New York Times.

Ursula von der Leyen, president of the European Commission, told the New York Times in an interview that they will recommend switching the policy to restore travel from across the Atlantic. The travel would require a vaccination certificate.

“The Americans, as far as I can see, use European Medicines Agency-approved vaccines,” Ursula von der Leyen, president of the European Commission, said Sunday in an interview with The Times in Brussels. “This will enable free movement and the travel to the European Union. Because one thing is clear: All 27 member states will accept, unconditionally, all those who are vaccinated with vaccines that are approved by E.M.A. “The agency, the bloc’s drugs regulator, has approved all three vaccines being used in the United States, namely the Moderna, Pfizer/BioNTech and Johnson & Johnson shots.”

In the interview, von der Leyen was unclear on an exact date for reopening and said that any decision will still depend on “the epidemiological situation, but the situation is improving in the United States, as it is, hopefully, also improving in the European Union.”

A number of countries have announced plans to reopen, but the EU’s comments mean the entire region may begin welcoming United States guests soon. It is likely that tourists from outside countries would need to apply for a European Union proof of vaccine, providing documentation from their own country, a practice the EU has already started.

A few countries have already announced plans to reopen with proof of vaccination or negative COVID-19 test, including Greece.