The Biden administration is working on a plan that would ease entry restrictions on fully vaccinated foreign visitors, Reuters reported Wednesday evening.

The report, citing an unnamed White House official, said the administration is planning a “phased approach” to allow visitors fully vaccinated against Covid-19 into the United States. The administration has “interagency working groups” developing a system to facilitate reopening travel, according to Reuters. No timeline was given as to when that could happen, however.

White House press secretary Jen Psaki last week said the White House was not ready to lift restrictions as the Covid-19 delta variant was spreading rapidly, even as the United Kingdom, Europe and Canada all are easing restrictions for fully vaccinated visitors from the United States. The United States has maintained a ban on most non-U.S. citizens who within a two-week period had been in the U.K. and the European Union’s Schengen zone as well as other countries, including Ireland, Brazil, China, India and South Africa, since the early days of the pandemic.