The Air Force Emblem (which contains the Coat of Arms) and the Department of the Air Force Seal are very similar in appearance and are often confused. Only the Emblem may be used for public/commercial use and requires an official license agreement.
The Air Force Emblem is an acceptable substitute for internal Air Force use when the use of the Seal is not authorized.
Air & Space Forces Intellectual
Property Management Office
Air Force Public Affairs Agency
555 E Street East
JBSA-Randolph, TX 78150