How will the government decide which countries go on the green, amber or red lists?Ĭountries are assigned to the three lists, based on a range of Covid-19 health metrics, which include figures on population vaccination, infection rates and prevalence of variants. Green: You will not need to quarantine on return, but you must take a pre-departure test, and a PCR test on return to the UK on Day 2.
Optionally you can take a test on Day 5 (Test to Release) to leave quarantine early. What do the three colours of the UK’s ‘Traffic Light System’ for travel mean? Each colour corresponds to specific rules when returning to the UK. As overseas travel can take place from 17 May, the government has devised a traffic light system which classifies international travel destinations based on Covid-19 risks.