The US has stopped requesting citizens “avoid all travel” to a number of destinations as Covid-19 vaccinations begin to have an impact around the world.
Travellers from the US can visit the UK but must self-isolate for ten days on arrival.
However, most passengers from the UK are still banned from travelling to the US.
Although the UK is listed as a level three by the CDC, under a presidential decree introduced last March, non-US citizens who have been in the UK in the last 14 days cannot enter the country unless a specific exemption applies.
Other countries that saw their ratings lowered include Ecuador, Philippines, South Africa, Canada, Mexico and Russia.
Japan also saw its travel rating lowered to allow vaccinated passengers to travel in the run-up to the Tokyo Olympics in July.