The UK is currently in breach of air pollution limits set by the European Commission and instructed the government to release a strategy to reduce it’s emissions, and in July 2017 the Air Quality Plan for Nitrogen Dioxide (NO2) in UK was launched.

The plan predominantly calls for the introduction of Clean Air Zones (CAZs), positioned at multiple hot spot locations across the UK.
The vehicle standards for entering these CAZs are Euro VI for diesel and Euro IV for petrol, with any non-compliant vehicles required to pay a fee to enter.

Phase 1- 

London implemented their Ultra Low Emission Zone in April 2019, the first five zone; Birmingham, Leeds, Nottingham, Derby and Southampton are expected to deliver their CAZs by the end of 2019,

Phase 2-

An additional 23 zones are also required to introduce emission reducing measures across the UK, feasibility studies for these areas should have been completed by 31st March 2018, with local authorities identifying their preferred option no later than the 31st December 2018. It should also be noted that unlike London, these clean air zones will only be enforced as long as they are needed, once emissions have reached a safe, compliant level, the zones will no longer be required, and should come to a close. Their exact duration however is unknown.

The Government released a hierarchy of vehicles, in four chargeable CAZ categories;
• Category A- buses, coaches, taxis and private hire vehicles
• Category B- buses, coaches, (HGVs) taxis and private hire vehicles
• Category C- buses, coaches, HGVs, vans, minibuses, taxis and private hire vehicles
• Category D- buses, coaches, HGVs, vans, minibuses, taxis and private hire vehicles, cars, motorcycles and mopeds

These categories have been shared with the local authorities affected and will guide them when selecting the vehicles included within their chargeable CAZ to achieve their emission reduction target. The local authorities are unable to deviate from the categories and must select the categories in the order provided.

Read the latest Clean Air Zone member briefing note here. The document provides the most up to date information FTA has on the progress of the individual clean air zones, check back here for regular updates.

Last updated 31 July 2019