The SAC validates existing plans and actions to Defence, and this advice enables early identification of areas of weakness. The Committees review of submarine matters will ensure that plans and decisions in this area are critically reviewed by personnel with submarine experience, complementing the role of the Naval Shipbuilding Advisory Board. The Committee is empowered to review within their agreed Terms of Reference, the totality of the submarine capability, including acquisition, capability, workforce (Navy, APS, and industry), and classified submarine operations. The SAC Members are appointed jointly by the Ministers for Defence and Defence Industry, and report to the Secretary of Defence and Chief of Defence Force.