Article 25-(6). Personnel organizations of schools established by To, Do, Fu or prefecture in accordance with the provisions of Article 52 paragraph 1 or paragraph 2 of the Local Public Service Law or those of schools established by local public bodies in To, Do, Fu or prefecture concerned may, for the time being, form a federation among these personnel organizations or join a federation of personnel organizations formed among these personnel organization, in order to negotiate with competent authorities of To, Do, Fu or prefecture concerning compensation, duty hours or other working conditions.