Under the holiday traffic light system, arrivals from green countries will not have to quarantine on return to the UK, unless they test positive or show symptoms.
But they must take two tests: a pre-departure test before setting off back to the UK, then a second gold-standard PCR test on or before day 2 after they arrive home.
They must take three tests - pre-departure, and then PCR tests on day 2 and day 8 after they arrive home.
They must also take three tests - the same as the amber group - and cannot pay for Test to Release.
It's emerged under-11s will not have to take "pre-departure" tests before they return to the UK under the traffic light system for foreign travel.