On May 26, the U.S. Air Force announced that it certified the Space Exploration Technologies Corp. (SpaceX) Falcon 9 launch vehicle to launch U.S. military satellites. With the certification, coming after an almost two year process involving 2,800 discrete tasks, including verification of 160 payload interface requirements, 21 major subsystem reviews and 700 audits to establish a technical baseline, SpaceX may now compete with United Launch Alliance for U.S. military launch missions.