Rules on travel differ depending on which Tier you will be in when England's lockdown ends on December 2 - here are the rules explained.
Health Secretary Matt Hancock has today confirmed the initial tiers for local authorities across the country.
Boris Johnson published the 56-page Covid Winter Plan outlining the new stricter three-tier local lockdown system that will come into force on Wednesday 2 December at 12.01am.
Only three local authorities - Isle of Wight, Cornwall and the Isles of Scilly - will be placed in Tier 1, with a combined population of 714,000, or just over 1% of the population of England.
Some 32 million people in England - just over 57% of the population - will be in Tier 2.
A total of 23.3 million people in England - 41.5% of the population - will be in Tier 3 of the Government's Covid-19 restrictions from December 2.
But what are the rules on travelling between the three tiers? Here's what you need to know:
TIER 1
If you live in a Tier 1 area and travel to an area in a higher tier you should follow the rules for that area while you are there.
Avoid travel to or overnight stays in Tier 3 areas other than where necessary, such as for work, education, youth services, to receive medical treatment, or because of caring responsibilities.
You can travel through a Tier 3 area as part of a longer journey.
TIER 2
If you live in a Tier 2 area, you must continue to follow Tier 2 rules when you travel to a Tier 1 area.
Avoid travel to or overnight stays in Tier 3 areas other than where necessary, such as for work, education, youth services, to receive medical treatment, or because of caring responsibilities.
You can travel through a Tier 3 area as a part of a longer journey.
TIER 3
Avoid travelling to other parts of the UK, including for overnight stays other than where necessary, such as for work, education, youth services, to receive medical treatment, or because of caring responsibilities.
You can travel through other areas as part of a longer journey.
