The Office of the Secretary of Defense (OSD) is the principal staff element of the Secretary of Defense in the exercise of policy development, planning, resource management, fiscal, and program evaluation responsibilities. OSD includes the immediate offices of the Secretary and Deputy Secretary of Defense, Under Secretaries of Defense, Assistant Secretaries of Defense, General Counsel, Director of Operational Test and Evaluation, Chief Information Officer, Assistants to the Secretary of Defense, Director of Administration and Management, and such other staff offices as the Secretary establishes to assist in carrying out assigned responsibilities. The Washington Headquarters Services (WHS) is a world-class service organization, with a dynamic workforce and unwavering commitment to service excellence. WHS is the essential services provider for the Office of the Secretary of Defense (OSD), Department of Defense (DoD) agencies, and offices in the National Capital Region.