Question to the Department for Transport:

To ask the Secretary of State for Transport, pursuant to the Answer of 9 March 2026 to Question 116554 on Hybrid Vehicles: Safety, whether there are areas of transport safety policy which the Government considers to be of paramount importance where the Department (a) does not hold the underlying analysis used to inform that policy and (b) has not assessed the effectiveness of that analysis.

In developing transport safety policy, the Government draws on a broad range of evidence to support policy development and decisions. This includes using existing independent evidence where it is sourced from robust and reliable research, alongside commissioning specific Government-funded studies when necessary to fill evidence gaps or complement and corroborate existing findings.