Currently if an individual travels to Ireland from a country that is not included on the Government green list, they are advised to restrict your movements for 14 days.
For those who are travelling for essential business, where the expertise is not available locally the advice is nuanced as follows:
You may need to travel here for essential work, if this expertise is not available locally. You are still asked to follow public health advice and restrict your movements when you're not working.
You may need to travel overseas from Ireland for essential work. If you do, you are asked to restrict your movements when you return.
Close consideration has been given by Government to policy on international travel, including how we will implement the recently adopted Council Recommendation 2020/0256.