Originally Posted by
moondog
STS-134 While you might not want or need to stay for more than 60/90/120 days, echannel seemingly requires an RP that is valid for 6 months or more.
Then that seems to contradict your initial statement that Q2 visas are eligible. AFAIK, you can't get a RP with a Q2, and even if you did, the Q2 would get canceled as soon as you got the RP.