Alright UK folks. Here it is. The UK governments new 'Tier' system

[b]Tier 3 ~ Very high alert[/b]

*Tees valley Combined Authority.
Hartlepool
Middlesborough
Stockton on Tees
Redcar and Cleveland
Darlington

*North east Combined Authority
Sunderland
South Tyneside
Gateshead
Newcastle Upon Tyne
North Tyneside
County Durham
Northumberland
Greater Manchester
Lancashire
Blackpool
Blackburn with Darwen
The Humber
West Yorkshire
South Yorkshire
Birmingham and Black country
Staffordshire and Stoke on Trent
Warwickshire, Coventry and Solihull
Derby and Derbyshire
Nottingham and Nottinghamshire
Leicester and Leicestershire
Lincolnshire
Slough
Kent and Medway
Bristol and South Gloucestershire

[b]Tier 2 ~ High alert[/b]
Cumbria
Liverpool
Warrington and Cheshire
York
North Yorkshire
Worcestershire
Herefordshire
Shropshire and Telford
Rutland
Northamptonshire
Suffolk
Cambridgeshire
Peterborough
Norfolk
Essex; Thurrock and Southend on sea
Bedfordshire
Milton Keynes
ALL 32 Boroughs of London + City of London
East Sussex
West Sussex
Brighton and Hove
Surrey
Reading
Wokingham
Bracknell Forest
Windsor and Maidenhead
West Berkshire
Hampshire; Portsmouth; Southampton (not the Isle of Wight)
Buckinghamshire
Oxfordshire
South Somerset; Somerset West; Taunton; Mendip and Sedgemore
Bath and North east Somerset
Dorset
Bournemouth
Christchurch
Poole
Gloucestershire
Wiltshire and Swindon
Devon

[b]Tier 1 ~ Medium alert[/b]
Isle of Wight
Cornwall
Isles of Scilly

Rules for each tier vary.

https://www.gov.uk/guidance/local-restriction-tiers-what-you-need-to-know