Question to the Ministry of Defence:

To ask the Secretary of State for Defence, when he expects the legacy nuclear powered submarine fleet to have been decommissioned.

Swiftsure, the first submarine to be fully disposed of, is being used as a demonstrator to refine the dismantling and recycling processes under the Ministry of Defence's Submarine Dismantling Project. There will be a continual process of learning as Swiftsure dismantling progresses. This will inform a baseline approach and schedule for all current decommissioned Royal Navy submarines.

Swiftsure dismantling is on track and due to complete in 2026, achieving the commitment given to the Public Accounts Committee in 2019. Over 90% of the submarine will be recycled. We are currently working with Babcock in Rosyth to plan for the next two boats in sequence, with a view to being on contract next year.