The Government has officially released the countries that are on Ireland's "green list".
The 15 countries are Malta, Finland, Norway, Italy, Hungary, Estonia, Latvia, Lithuania, Cyprus, Slovakia, Greece, Greenland, Gibraltar, Monaco and San Marino.
This means people who travel from these nations won't have to self-isolate for 14 days when arriving in Ireland.

A spokesman for the Government said: “Anyone arriving into Ireland from these countries will not have to restrict their movements.
“Passengers from any other country outside of those with a Normal Precautions advisory are asked to restrict their movements for 14 days.
“The list will be reviewed on a fortnightly basis, based on advice from officials including public health experts.”
But already the Government has received a hammering over its choices, with Sinn Féin transport spokesman, Darren O’Rourke, saying it sends a “contradictory and confusing message.”
Mr O’Rourke said: “Following the publication of the government’s travel ‘Green List’ tonight, I am very concerned that a contradictory and confusing message is being sent to the public concerning foreign travel.
"We now have a ‘Green List’ that identifies countries that people can travel to and from without the need to quarantine, but advice against all non-essential foreign travel appears to remain in place.
“This makes very little sense and sends a very mixed message at a critical time in our Covid-19 response.”
Earlier on Tuesday, Tánaiste and former Taoiseach, Leo Varadkar also put the cat among the pigeons by speaking his own mind, outside the official Government line.
He said there could be no more "mixed messages" and that there would be no point having a green list if the advice for other countries was no different.
Last month, in one of his last acts as Taoiseach, Mr Varadkar declared at his final post-Cabinet press conference that the green list would be published.
He explained to the press that day, including the Irish Mirror, that this would be a list of countries that would have “air bridges” with Ireland.
It would be safe to travel to-and-fro between each with no extra restrictions imposed.