The Clean Air Zone operates 24 hours a day, 365 days a year. The Zone covers an area of the city centre within the A4540 Middleway. Vehicles that do not meet the emission standards for the zone are subject to a daily fee. The daily fee can be paid online or by phone. If you do need to pay the daily fee you can do so 6 days before your day of travel, the day of travel or up to 6 days after. More information on Birmingham's Clean Air Zone, including how to check your vehicle meets emission standards