Question to the Department for Transport:

To ask the Secretary of State for Transport, what information her Department holds on the average age of (a) locomotives and (b) wagons on the rail freight network.

The rail freight industry is mainly privately owned and operated, so the Department does not keep data on the age of these privately owned assets.

The regulator for rail, the Office of Rail and Road holds some data on freight rolling stock which can be found here: https://dataportal.orr.gov.uk/statistics/infrastructure-and-environment/rail-infrastructure-and-assets/ .