Boris Johnson has announced the details of a stricter three-tier system – medium (tier 1), high (tier 2), or very high (tier 3) – for England.

The prime minister confirmed the news during an appearance in the House of Commons via video link on Monday, during which he stated that when the second lockdown comes to an end on 2 December, England will return to a regional approach similar to the one that was introduced in October, however restrictions will be tougher across all three tiers.

Decisions on which area goes into which tier are primarily based on 5 key epidemiological indicators:

  • case detection rates in all age groups
  • case detection rates in the over-60s
  • the rate at which cases are rising or falling
  • positivity rate (the number of positive cases detected as a percentage of tests taken)
  • pressure on the NHS, including current and projected occupancy

The indicators are designed to provide a full picture of what is happening with the virus in any area so that suitable action can be taken.

Tier 1: Medium Alert

South East

  • Isle 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
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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