Question to the Department for Transport:

To ask the Secretary of State for Transport, whether her Department undertook a value-for-money assessment under HM Treasury Green Book guidance before announcing its support for the expansion of Heathrow Airport.

A Treasury Green Book Value for Money assessment is a process and judgement about the optimal use of public resources to achieve the stated objectives of a project. We have been clear throughout that any expansion of Heathrow Airport should be funded entirely by the private sector.