Travel list updates: What to do if your green list holiday changes to amber Portugal is reported to be moved to the amber list from the green list of countries Updated (Image: Getty Images/iStockphoto) With the news that Portugal may be taken off the green list of countries British holidaymakers can travel to, what if you've booked a holiday there? The country had been one of 12 countries and territories to be on the green list - and one of the handful which was actually open to British holidaymakers. Now with the country tipped to go on the amber list said MirrorOnline, anyone returning to the UK will need to self-isolate at home, as well as taking a pre-departure test and PCR tests on days two and eight back in the UK. (There is an option to take a test on day five with a negative result allowing you to be ‘released’ early).