Welcome news for millions of travelers arrived on Monday with the announcement of plans to allow fully vaccinated foreign air travelers into the United States starting in early November.

The plans both loosen and tighten existing rules, depending on the country an international traveler is arriving from and their vaccination status.

Here's what we know so far about what the new policy will mean:

The door is finally opening for people in countries affected by travel bans
Travel bans put in place early in the pandemic by presidential proclamations have barred foreign nationals arriving from China, Iran, Europe's Schengen area, the United Kingdom, the Republic of Ireland, Brazil, South Africa and India.

For the first time in more than a year in many cases, vaccinated foreign nationals who have been in those countries in the 14 days before entering the United States will soon be allowed in with proof of vaccination and a negative Covid-19 test taken within three days of their flight.