Boris Johnson has announced a raft of new Coronavirus measures will come into force today.
The Prime Minister has introduced the tougher restrictions after the Omnicron variant hit the UK.
Six new cases of the highly mutated strain have been discovered in Scotland, in addition to three already detected in England.
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The new rules are designed to curb the spread of the "variant of concern" while scientists investigate to learn more about its threat.
The government confirmed they will review the new measures in three weeks' time.
Here's all the new Covid rules being introduced today, November 30, with big changes for face masks, travel, quarantine and vaccine rules.
Face coverings are set to be made made compulsory in shops and on public transport in England.
It is also now mandatory to wear a face mask in hairdressers, banks and post offices.
The guidance has also been updated for pupils at secondary schools as they are now being "strongly advised" to wear coverings in communal areas.
Number 10 has confirmed face coverings will not be mandatory in hospitality settings such as pubs or restaurants.
Anyone who has come into contact with a person who has contracted the Omicron variant must self isolate for 10 days, regardless of their vaccination status.
The government has said specialist testing is underway in targeted areas where the variant has been identified.
It was announced yesterday that some of the cases identified in Scotland have no known travel history which suggests they could have been transmitted within the country.
Arrivals in the UK will now need to take a PCR test rather than a cheaper lateral flow within 48 hours of entering the UK.
They must isolate at home until the a negative test result comes back.
The Joint Committee on Vaccination and Immunisation announced yesterday that all adults in the UK will be offered Covid-19 booster jabs.
.Until now, only those aged 40 and over were being offered booster vaccines, but that will now be extended to all adults as concerns grow about the impact of the new variant that is spreading around the world.
It means that anyone aged 18 and over will be eligible for a third jab - although only after three months has passed since their second jab.
Those who are severally immunocompromised will be offered another booster - which will be their fourth jab.
And children aged between 12 and 15 will now be encouraged to take up a second jab.
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