Question to the Department for Transport:

To ask the Secretary of State for Transport, how many vehicles were charged for using clean air zones that are serviced by Clean Air Zone Central Services by age of vehicle in the latest period for which data is available.

Currently there are four live Clean Air Zones, all using the Clean Air Zone Central Services. These are:

• Bath and North East Somerset (live from 15^th March 2021)
• Birmingham (live from 1^st June 2021)
• Portsmouth (live from 29^th November 2021)
• Bradford (live from 26^th September 2022)

The number of vehicles classified by the Clean Air Zone Central Services as subject to a charge across all live Clean Air Zones is shown in the table below. The Government does not hold data split by the age of the vehicle.

Local authorities are responsible for the enforcement of charging as well as the administration of local exemptions.