Health Secretary Matt Hancock has today revealed which counties are within which tier as England comes out of full lockdown on 2 December.
Devolved administrations in Scotland, Wales and Northern Ireland have the power to set their own coronavirus regulations, though all four UK nations have agreed a joint plan for Christmas.
Differences between the new tiers include restrictions on where households can meet up:
Tier one: the rule of six applies everywhere, indoors and out
Tier two: the rule of six applies outdoors but there is no household mixing anywhere indoors. Pubs and restaurants in tier two can only open to serve 'substantial meals', while those in tier three can only operate as a takeaway or delivery service.
Tier three: can only meet other households in outdoor public spaces like parks, where the rule of six applies
Gyms and close-contact beauty services like hairdressers will be able to open in all tiers. Guidance said people in all tiers who can work from home, should continue to do so.
The full list is as follows:
Tier 1: Medium alert
South EastIsle of Wight
South West Cornwall
Isles of Scilly
Tier 2: High alert
North West Cumbria
Liverpool City Region
Warrington and Cheshire
Yorkshire York
North Yorkshire
West Midlands Worcestershire
Herefordshire
Shropshire and Telford & Wrekin
East Midlands Rutland
Northamptonshire
East of England Suffolk
Hertfordshire
Cambridgeshire, including Peterborough
Norfolk
Essex, Thurrock and Southend on Sea
Bedfordshire and Milton Keynes
London all 32 boroughs plus the City of London
South East East Sussex
West Sussex
Brighton and Hove
Surrey
Reading
Wokingham
Bracknell Forest
Windsor and Maidenhead
West Berkshire
Hampshire (except the Isle of Wight), Portsmouth and Southampton
Buckinghamshire
Oxfordshire
South West South Somerset, Somerset West and Taunton, Mendip and Sedgemoor
Bath and North East Somerset
Dorset
Bournemouth
Christchurch
Poole
Gloucestershire
Wiltshire and Swindon
Devon
Tier 3: Very High alert
North East Tees Valley Combined Authority:
Hartlepool
Middlesbrough
Stockton-on-Tees
Redcar and Cleveland
Darlington
North East Combined Authority:
Sunderland
South Tyneside
Gateshead
Newcastle upon Tyne
North Tyneside
County Durham
Northumberland
North West Greater Manchester
Lancashire
Blackpool
Blackburn with Darwen
Yorkshire and The Humber The Humber
West Yorkshire
South Yorkshire
West Midlands Birmingham and Black Country
Staffordshire and Stoke-on-Trent
Warwickshire, Coventry and Solihull
East Midlands Derby and Derbyshire
Nottingham and Nottinghamshire
Leicester and Leicestershire
Lincolnshire
South East Slough (remainder of Berkshire is tier 2: High alert)
Kent and Medway
South West Bristol
South Gloucestershire
North Somerset