Unfortunately, we do not yet know which countries will be placed in each category, although this is expected in early May.
We do, however, have a good indication as to what rules will be in place depending on whether a country is categorised "red", "amber" or "green".
Countries will be categorised based on Covid-19 risk, including levels of Covid vaccination and success of vaccination programmes.
The measures only govern the rules for returning to the UK; individual countries may have their own additional Covid border controls and measures travellers will need to comply with to enter.
