Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what steps his Department takes to monitor the safety and performance of the UK's nuclear deterrent and weapons programme.

Safety is monitored and regulated by the Defence Nuclear Safety Regulator, the Defence Maritime Regulator and by civil regulators. Deterrent performance is assured by the Chief Strategic Systems Executive. The Defence Nuclear Safety Committee provides overarching assurance to the Secretary of State on the adequacy of these arrangements.