Passengers entering England from 59 destinations - including many popular holiday spots - will no longer have to quarantine as of today.
However, not all of them have ended restrictions for UK tourists when they arrive there.
Arrivals are exempt from quarantine if they arrive in England, Wales and Northern Ireland from:
Andorra, Antigua and Barbuda, Aruba, Australia, Austria, Bahamas, Barbados, Belgium, Bonaire, Saint Eustatius and Saba, Croatia, Curaçao, Cyprus, Czech Republic, Denmark, Dominica, Faroe Islands, Fiji, Finland, France, French Polynesia, Germany, Greece, Greenland, Grenada, Guadeloupe, Hong Kong, Hungary, Iceland, Italy, Jamaica, Japan, Liechtenstein, Lithuania, Luxembourg, Macau, Malta, Mauritius, Monaco, Netherlands, New Caledonia, New Zealand, Norway, Poland, Réunion, San Marino, Serbia, Seychelles, South Korea, Spain, St Barthélemy, St Kitts and Nevis, St Lucia, St Pierre and Miquelon, Switzerland, Taiwan, Trinidad and Tobago, Turkey, Vatican City, Vietnam.
The 14 British Overseas Territories are also exempt.
The government has said the list will be kept under review.
You will still have to isolate for 14 days if you arrive back in England from Canada, the US and much of Central or South America.
Countries in Africa, the Middle East and most of Asia are also excluded - as are Sweden, Portugal and Russia.