Hate to be an ass but when I went to www.google.com
and typed in aikikai testing requirements
I hit a bundle of them including most of the major associations.
The problem with the USAF is that their requirements are about 4 times longer, in terms of days, than what I've seen as official aikikai requirements. Their time to test is amongst the longest I've seen.
Here's a thread on time:
The official requirements from Hombu are hard to find. I think Jun may have a link to them somewhere.