Rosyth Dockyard /rəˈsaɪθ/ is a large naval dockyard on the Firth of Forth at Rosyth, Fife, Scotland, owned by Babcock Marine, which formerly undertook refitting of Royal Navy surface vessels and submarines. Before its privatisation in the 1990s it was formerly the Royal Naval Dockyard Rosyth. Its primary role now is the dismantling of decommissioned nuclear submarines. It is also the integration site for the Royal Navy's newest aircraft carriers, the Queen Elizabeth class as well as the Type 31 Frigate.