All ten local authorities have worked together to develop the Greater Manchester Clean Air Plan. This will help bring nitrogen dioxide (NO2) levels on local roads within legal limits by 2024. This includes a GM-wide Clean Air Zone (CAZ).
Once implemented, GM anticipates that the CAZ will remain in full operation until at least the second half of 2026.
If it is demonstrated by the second half of 2026 that two consecutive years’ of compliance with the legal limit value for NO2 has been met, and there is confidence that compliance will continue to be maintained then, subject to GM governance processes, GM will notify the Secretary of State and request the removal of the legal direction, allowing the GM Authorities to decommission the Clean Air Zone including the removal of signage.