guided by the Defence Force Regulations 1952, the level of four-star rank is that of commissioned officer O-10 in the Australian Defence Force ranks code. This means the Australian Army rank of general, the Royal Australian Navy rank of admiral, and the Royal Australian Air Force rank of air chief marshal. In the Australian Public Service, guided by the Public Service Act 1999, the level of four-star rank is the equivalent civilian level of Senior Executive Service Band 4, which is styled as secretary with the leadership of a department. Chief of the Defence Force (CDF) Secretary of Defence (SECDEF) Director-General of the Australian Signals Directorate (ASD) Three-star level In the Australian Defence Force, guided by the Defence Force Regulations 1952, the level of three-star rank is that of commissioned officer O-9 in the Australian Defence Force ranks code. This means the Australian Army rank of lieutenant general, the Royal Australian Navy rank of vice admiral, and the Royal Australian Air Force rank of air marshal. In the Australian Public Service, guided by the Public Service Act 1999, the level of three-star rank is the equivalent civilian level of Senior Executive Service Band 3, which is styled as associate secretary or deputy secretary (DEPSEC) or a chief portfolio officer, with the leadership of a group or agency. Australian Defence Force Vice Chief of the Defence Force (VCDF) Chief of Navy (CN) Chief of Army (CA) Chief of Air Force (CAF) Chief of Joint Operations (CJOPS) Chief of Joint Capabilities (CJC) Chief of Defence Intelligence (CDI) Principal Deputy Director-General of the Australian Signals Directorate Department of Defence Associate Secretary of the Department of Defence Deputy Secretary for Strategic Policy and Intelligence Deputy Secretary for Capability Acquisition and Sustainment Deputy Secretary for People Deputy Secretary for Estate and Infrastructure Chief Finance Officer Chief Information Officer Chief Defence Scientist Two-star level In the Australian Defence Force, guided by the Defence Force Regulations 1952, the level of two-star rank is that of commissioned officer O-8 in the Australian Defence Force ranks code. This means the Australian Army rank of major general, the Royal Australian Navy rank of rear admiral, and the Royal Australian Air Force rank of air vice marshal. In the Australian Public Service, guided by the Public Service Act 1999, the level of two-star rank is the equivalent civilian level of Senior Executive Service Band 2, which is styled as First Assistant