The Air Force Symbol is a registered trademark. Use of this logo by any non-Federal entity must receive permission from the Air Force Branding and Trademark Licensing Office at email@example.com. Non-Federal entities wishing to use the Air Force Symbol should reference the DoD Guide on the use of Government marks. The link to the guide can be found at http://www.defense.gov/Media/Trademarks. Guidance on the proper use and display of the Symbol can be found in AFI35-114. For information on proper display of the Air Force symbol visit http://www.trademark.af.mil/symbol/displaying/index.asp.