What is subject to ITAR?

Generally, these items are inherently military in nature (i.e., they are used or created with the sole intention of military application or the military has deemed an item to be such). The key terms are "defense articles" and "defense services." Any defense article, service, or related technical data found to be on the U.S. Munitions List (USML) requires an export license to be exported (i.e., given to a non-U.S. person). Exceptions to the licensing requirement are very rare.