Question to the Ministry of Defence:

To ask the Secretary of State for Defence, with reference to page 27 of the report entitled Managing infrastructure projects on nuclear-regulated sites, published by the NAO on 10 January 2020, what the £339m cost attributed to other factors comprised.

The £339 million cost referred to in the National Audit Office report relate to Project MENSA, the new-build warhead assembly/disassembly facility at the Atomic Weapons Establishment's Burghfield site. The additional costs include changes to project management and resourcing, design approvals, construction changes, equipment installation, facility commissioning and Ministry of Defence held contingency.