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Investigation into submarine defueling and dismantling

The National Audit Office is carrying out an investigation describing the Ministry of Defence’s progress with submarine defueling and dismantling.

The Department has committed to disposing of its submarines ‘as soon as reasonably practical’. Since 1980, it has removed 20 submarines from service and has not yet disposed of any of these. The Department keeps these submarines, nine of which contain nuclear fuel, at dockyards in Devonport and Rosyth.  The investigation will set out the disposal process, the Department’s progress across its submarine-disposal related programmes and how the Department is addressing programme challenges.

This study is part of the NAO’s continuing programme of work across the Nuclear Enterprise, following our landscape review published in May 2018.