The government’s traffic light system for travel has been revealed, as have the countries making up the green, amber and red lists. Is Greece on the amber list? AdvertisementThe government will review which countries are on the green, amber and red lists every three weeks. The next review is expected to be between Tuesday 1 and Friday 4 June, and Greece could be moved off the amber list then. UK nationals can enter Greece if they are a permanent resident in the UK, Greece or another EU country (as well as a handful of others including Australia, New Zealand and the USA).