Spray dryer was not previously listed as regulated items, however, was added to the regulations on October 15, 2013. This addition was made in order to prevent general industrial equipment from being diverted into the production of weapons (chemical and biological weapons, etc.), since Spray dryer may be used for the preservation of biological weapons, etc. Of course, not all Spray dryers are subject to regulation. This is because the export control by the Foreign Exchange Act implements the minimum necessary control from the viewpoint of Japan's security and the maintenance of international peaceful and security. Specifically, only those that fall under all of (a), (b), and (c) below are subject to regulation.