It too is chaired by the Secretary of State, and its members are ministers, the senior officers and senior civilian officials.[34][35] The Defence Board is the main MOD corporate board chaired by the Secretary of State oversees the strategic direction and oversight of defence, supported by an Investment Approvals Committee, Audit Committee and People Committee. The board's membership comprises the Secretary of State, the Armed Forces Minister, the Permanent Secretary, the Chief and Vice Chief of the Defence Staff, the Chief of Defence Materiel, Director General Finance and three non-executive board members.[34][36] Head Office and Corporate Services (HOCS), which is made up of the Head Office and a range of corporate support functions.