Clean Air Zone

A Clean Air Zone (CAZ) is an area in the United Kingdom where targeted action is taken to improve air quality.[1] A CAZ can be non-charging or charging. Five cities have been mandated to introduce a Clean Air Zone by 2020: Birmingham, Leeds, Derby, Nottingham and Southampton.[2]

Whether a vehicle is charged when entering or moving through a CAZ depends on the type of vehicle and the Euro standard of the vehicle. The amount charged is up to the local authority responsible for the CAZ. Ultra-low-emission vehicles are not charged when entering or moving through a Clean Air Zone.

Classes of charging Clean Air Zone
Class Vehicle Charge applies to vehicles
below this Euro standard
A Bus
Coach		 Euro VI
Taxi and private hire Euro 6 (diesel)
Euro 4 (petrol)
B Bus
Coach
HGV		 Euro VI
Taxi and private hire Euro 6 (diesel)
Euro 4 (petrol)
C Bus
Coach
HGV		 Euro VI
Taxi and private hire
Minibus
LGV		 Euro 6 (diesel)
Euro 4 (petrol)
D Bus
Coach
HGV		 Euro VI
Taxi and private hire
Minibus
LGV
Private cars		 Euro 6 (diesel)
Euro 4 (petrol)
Motorcycles (optional)
Mopeds (optional)		 Euro 3

List of Clean Air Zones
Region Class Date of implementation Scope Notes References
Bath C 2020 A wide central area [3]
Birmingham D 2020 All the roads within the A4540 Ring Road. [4]
Bristol B 2021 City centre Additional diesel vehicle ban in parts of city centre between 07:00 and 15:00. [5]
Derby Non-charging 2020 Traffic management measures on Stafford Street [6]
Greater London 8 April 2019 Cities of London and Westminster Known as ULEZ. Will be extended to the North and South Circular roads from 2021. [7]
Greater Manchester B 2021 Entire county Will become class C in 2023. [8]
Leeds B 2020 City centre All roads within the boundary of the A61 and A63. [9]
Leicester A 2021 [10]
Nottingham Non-charging 2020 Retrofitting buses, regulating taxis, converting council-owned vehicles [11]
Sheffield C 2021 Inner ring road and the city centre. [12]
Southampton Non-charging 2020 Retrofitting buses, regulating taxis, cleaner fuels and equipment at Southampton’s port, cycling infrastructure [13]

See also

References
  1. "Clean Air Zone Framework" (PDF). DEFRA and DfT. May 2017.
  2. "What are the proposed UK Clean Air Zones (CAZ)?". Fleet News.
  3. "Independent review into Bath CAZ calls benefits 'uncertain'". Air Quality News. 9 September 2019.
  4. "A clean air zone for Birmingham". Birmingham City Council.
  5. "Bristol clean air diesel ban plan approved". BBC News. 5 November 2019.
  6. "Derby submit Outline Business Case to government which confirms no CAZ". Air Quality News. 5 March 2019.
  7. "ULEZ: The politics of London's air pollution". BBC News. 5 April 2019.
  8. "Greater Manchester Clean Air Plan proposals". Clean Air GM.
  9. "Air Quality". Leeds City Council.
  10. "Leicester proposes Clean Air Zone, but vans and cars exempt". Air Quality News. 1 November 2019.
  11. "GClean air zone proposals". Sheffield City Council.
  12. "A clean air zone for Birmingham". Birmingham City Council.
  13. "Clean Air Update". Southampton City Countil. January 2019.
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