UPDATE: AFJROTC cadets may wear the Hap Arnold, Wing and Star cap device only if the unit has written permission from HG AFJROTC. Individual cadets may not wear the device, but special teams may with the written permission. For more on seeking permission, read the article, New AFJROTC Drill Team Uniform Policy.
JROTC Cadets May Not Wear ANY Service Uniform Items. Cadets in JROTC are not in the military.
A few Air Force JROTC cadets created a little stir in the Military Drill World a little while ago when a friend of mine and I discovered pictures on Instagram and Facebook showing cadets wearing uniforms items that are solely for military service members. What began with Air Force and even Army JROTC cadets wearing the AF Base Honor Guard Badge continued with cadets wearing the Hap Arnold, Wing and Star cap device and other cap devices. Rest assured, those instances were taken care of by a colleague of mine at HQ AFJROTC.
Army JROTC, Marine Corps JROTC, Navy JROTC, and even Coast Guard CPJLP cadets all have guidance on the authorized accouterments for your specific uniform. Find those guidelines (listed here) and follow them. Ignorance is unacceptable. Please remember: Federal law imposes certain restrictions on wearing a military uniform.
For AFJROTC cadets, here is the information that you need to know:
AFJROTC Consolidated Operational Supplement, August 1, 2015, 7.6.8: Badges or insignia from Active Duty, Guard, Reserve, or any other non- AFJROTC group are not authorized on the AFJROTC uniform.
What is authorized? Here is a picture showing the proper device (picture from supplyroom.com).
Thanks to MSgt Lee Messina for the uniform guidance quote.