The Office of the Secretary of Defense Identification Badge is a military badge

Military badges of the United States

Military badges of the United States are awards authorized by the United States armed forces that signify rating, qualification, or accomplishment in several career fields, and also serve as identification devices for personnel occupying certain assignments. Personal recognition is granted to...

 issued to members of the United States armed forces

United States armed forces

The United States Armed Forces are the military forces of the United States. They consist of the Army, Navy, Marine Corps, Air Force, and Coast Guard.The United States has a strong tradition of civilian control of the military...

 who are permanently assigned to the Office of the Secretary of Defense

Office of the Secretary of Defense

The Office of the Secretary of Defense is a headquarters-level staff of the Department of Defense of the United States of America. It is the principal civilian staff element of the Secretary of Defense, and it assists the Secretary in carrying out authority, direction and control of the Department...

 (OSD) and its subordinate offices, and in addition, to some of the Defense Agencies and Department of Defense Field Activities.

The badge was first created in 1949 and was referred to as the "National Military Establishment Identification Badge." In 1950, the badge was renamed as "Department of Defense Identification Badge." On December 20, 1962 the badge was given its current name.

It is issued as a permanent decoration and is to be worn for the remainder of an individual's military career, provided that a service member served at least one year (two years for Reserve personnel not on active duty) in or in support of OSD. Personnel who are awarded the badge include all military personnel, when they are assigned on a permanent basis to any of the following organizational elements:

• The Immediate Offices of the Secretary
  United States Secretary of Defense
  The Secretary of Defense is the head and chief executive officer of the Department of Defense of the United States of America. This position corresponds to what is generally known as a Defense Minister in other countries...
  
   and Deputy Secretary of Defense
  United States Deputy Secretary of Defense
  The Deputy Secretary of Defense is the second-highest ranking official in the Department of Defense of the United States of America. The Deputy Secretary of Defense is appointed by the President, with the advice and consent of the Senate...
  
  .
• The Offices of the Under Secretaries of Defense.
• The Offices of the Assistant Secretaries of Defense.
• The Office of the General Counsel of the Department of Defense.
• The Office of the Inspector General of the Department of Defense.
• The Offices of the Assistants to the Secretary of Defense or Deputy Secretary of Defense.
• The Office of the Defense Advisor, U.S. Mission to NATO.
• The Offices of the Directors of Net Assessment
• The Office of the Director of Administration and Management (DA&M)
• The Office of the Director of Operational Test and Evaluation (OT&E)
• Ballistic Missile Defense Organization (BMDO)
• Defense Advanced Research Projects Agency
  Defense Advanced Research Projects Agency
  The Defense Advanced Research Projects Agency is an agency of the United States Department of Defense responsible for the development of new technology for use by the military...
  
  (DARPA)
• DSCA