Question to the Department for Transport:

To ask the Secretary of State for Transport, whether the environmental assurance work his Department undertook in December 2015 in connection with runway expansion has been completed; and what the estimated cost of that work was to the public purse on the latest date for which figures are available.

The Department is undertaking work to understand the environmental impacts of additional airport capacity. Further details on procurement undertaken to support the Department on environmental impacts can be found here: https://www.contractsfinder.service.gov.uk/Notice/17ffaddc-3c19-4462-91ae-bf30029c08d9.