The <a href="https://en.wikipedia.org/wiki/Air_Force_ROTC" class="extiw" title="en:Air Force ROTC">Air Force ROTC</a> Arnold Air Society Candidate Pin.
U.S. Air Force
<a rel="nofollow" class="external text" href="http://www.uc.edu/afrotc/documents/AFROTCI%2036-2008.pdf">Air Force ROTC Instruction 36-2008</a>