The FAA continues to develop rules for space tourism, with a final set of recommendations expected in July. Virgin Galactic expects to begin regular commercial space flights in less than four years, and the FAA is trying to establish ground rules to safely manage commercial space flights. Requirements are expected to be similar to the rules set for terrestial airlines, and the the FAA will probably not try to regulate health issues--leaving that for passengers to decide for themselves if they are fit enough for launch, weightlessness, and re-entry.