To improve air quality, some local authorities are introducing Clean Air Zones (CAZs).

The towns and cities here have introduced, or have proposed, CAZs in accordance with the government guidelines.


A class D charging zone covers the area of central Birmingham within, but excluding, the Middleway Ring Road (A4540). This includes the A38 Queensway for traffic transiting between north and south Birmingham. The zone applies 24 hours a day and 365 days a year.

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