Department of Defense and Military Seals are protected by law from unauthorized use. These seals may NOT be used for non-official purposes.
However, the Military Services typically approve the use of their Service emblem or coat of arms on a case-by-case basis as a substitute. There is no such substitute for the Department of Defense Seal.
There is NO optional graphic that would represent the Department of Defense.
Because of the wide range of specific requirements (material, size, color, etc.) desired for each individual requestor's project, DoD does not stock or provide emblems for such use. The production of emblems is the responsibility of each requestor. Final approval for use of Military Service emblems and additional information as to the design of the emblems, specific colors used and the availability of graphic masters or camera-ready masters can be obtained from the following offices: