Originally Posted by
Pickles
So it's all on a trial maybe-maybe not basis, no explicit policy, and if you get a bus gate, you're hosed. So best not to expect security-free transit if coming from the US!
It is no longer a trial basis. But yes the growing number of bus gates in the mess that Haneda has become in the afternoon arrival bank does put a bit of risk in to assuming. Bus gate arrivals in Narita are exceedingly rare.