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Clean Air Zone Guides

Clean Air Zones (CAZ) charge the most polluting vehicles to drive in certain UK city centres. Unlike London's ULEZ, each zone sets its own rules, so a car that drives free in one city may be charged in another. Charges usually start at a few pounds a day for older vans and taxis, rising to £50 or more for non-compliant lorries and buses.

Because the rules change from city to city, it pays to check the exact zone before you travel. The guides below cover every active UK Clean Air Zone, from Bath and Birmingham to Bristol, Bradford, Newcastle and Sheffield, with boundaries, charges and exemptions explained in plain English.

Explore Our Clean Air Zone Guides

Discover the locations, timings, and regulations of Clean Air Zones (CAZ) across the UK.

Learn about the boundaries, charges, and exemptions associated with Bath's Clean Air Zone (CAZ).

Get comprehensive information about Birmingham's Clean Air Zone (CAZ), including boundaries, charges, and exemptions.

Determine if you need to pay charges in Bradford's Class C Clean Air Zone (CAZ) that targets non-compliant van drivers in the city centre.

Discover essential information about Bristol's Clean Air Zone (CAZ), including charging criteria for non-compliant vehicles.

Find out if you need to pay charges in Newcastle's Clean Air Zone (CAZ) located in the city centre.

Understand the boundary of Sheffield's Clean Air Zone (CAZ) and learn which vehicles are required to pay charges.