Figure E.1 Timeline for implementing the report's nine recommendations, which are denoted R1 through R6. A1 and A2 refer to priority research activities (see Appendix A). The timeline is keyed to the ISS assembly schedule, which is available from NASA on the Web at <http://spaceflight.nasa.gov/station/assembly/flights/chron.html>. The first crew—a U.S. astronaut and two Russian cosmonauts—will be launched on a Russian Soyuz spacecraft in March 2000 on flight 2R ("R" denotes a Russian mission). They will stay there 3 months. From that point on, the ISS is planned to be permanently staffed.