Question to the Department for Transport:

To ask the Secretary of State for Transport, which British and European tyre manufacturing experts have contributed to his Department's research into tyre ageing on buses and coaches since December 2013.

The Department has consulted with representatives of the European Tyre and Rim Technical Organisation, Michelin, Bandvulc Tyres, the British Tyre Manufacturers’ Association and the Retread Manufacturers Association.

Further research is being planned but has not yet been commissioned. The outcomes will be available next year.