Do you mean dan promotions, or promotions to shihan? In either case, as I implied in my earlier post, you don't.
ummm...maybe I'm just bing a little naive here or perhaps I'm missing something, but couldn't someone be kind enough to translate the info on the website for the rest of us who do no know enough Japanese to translate it for ourselves. I think that is what is being asked (or at least implied). Is this some type of big social no-no or what? The info is there, its just not in English, right? (Its late in the evening, sorry about the sarcastic tone)
On another note about the Shihan title. Obviously the title is an honor bestowed on those who have dedicated their lives to not only learning Aikido, but to putting forth a extraordinary effort to spreading and teaching the art. But does the title also have some "concrete" power/responisibility that goes along with it? Something I've always been interested in knowing...does having the title of Shihan through Hombu Dojo (Aikikai) allow one to promote students to higher ranks: i.e. generally Shidoin are usually allowed to test students up to ranks of Nidan or Sandan. Does this change with the Shihan title, I wonder? Isn't a Shihan allowed to test, promote, and sign the certificates of students up to and including their own rank, or does that require some other Hombu approval? Will it be different for non-Japanese Shihan?
Just some more discussion fodder.