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. Those with a valid CAC may download high-resolution versions of the Symbol from the Air Force Portal. The link to the graphics is located under the “Library and Resources” tab. Guidance on the proper use and display of the Symbol can be found in AFI35-114.