Question to the Department for Transport:

To ask the Secretary of State for Transport, whether his Department consulted the Chief Scientific Adviser on the decision by National Highways to trial 60mph speed limits on motorways on the grounds of air quality.

The Department for Transport draws from a range of scientific advice and expertise, including from the Government Chief Scientific Adviser, the Chief Scientific Advisers in individual Government Departments, and academics and researchers. National Highways are in the process of analysing the results of the speed limit trials and will be publishing the reports in due course.