If you live in a Tier 4 area, you must follow the rules below from Sunday 20 December. This means that you cannot leave or be outside of the place you are living unless you have a reasonable excuse. You cannot meet other people indoors, including over the Christmas period, unless you live with them, or they are part of your support bubble. Outdoors, you can only meet one person from another household. These rules will not be relaxed for Christmas for Tier 4: you cannot form a Christmas Bubble in Tier 4.