It applies if they go through an excluded territory on the way back
It's been confirmed travellers will be asked to limit their contacts if they go through somewhere like France - which isn't on the green list - while returning from Monaco - which is.
Meanwhile, travel insurers say they will cover people going to one of the 15 approved countries after the official advice changed from "avoid non essential travel" to "normal precautions".
Ciaran Mulligan, managing director of Blue Insurance, is glad there's been some clarity:
