The Office of the Secretary of the Navy, also known within DoD as the Navy Secretariat or the Secretariat, is the immediate headquarters staff that supports the secretary in discharging his duties. The principal officials of the Secretariat include the under secretary of the Navy (the secretary's principal civilian deputy), the assistant secretaries of the Navy (ASN), the general counsel of the Navy, the judge advocate general of the Navy (JAG), the Naval inspector general (NIG), the chief of Legislative Affairs, and the chief of naval research. The Office of the Secretary of the Navy has sole responsibility within the Department of the Navy for acquisition, auditing, financial and information management, legislative affairs, and public affairs. The Department of the Navy and the Office of Secretary of the Navy were established by act of April 30, 1798 (10 U.S.C. 5011, 5031). #Navy #MarineCorps