Students who wish to learn the systems of Koryu Karate, Goshinjutsu, Chugoku Kenpo or traditional Ryu Ha must become a member of either the Genbukan World Ninpo Bugei Federation or the Kokusai Jujutsu Renmei. Both memberships are treated equally for this purpose. Below are the links which will take you to the membership pages.
Join the Genbukan World Ninpo Bugei Federation.
Join the Kokusai Jujutsu Renmei.