The Federal Railroad Administration sponsored a full-scale train-to-train crash energy management (CEM) technology test that was conducted on March 23, 2006, at the Transportation Technology Center in Pueblo, Colorado. The Volpe National Transportation Center directed and coordinated the contractors who implemented the test and developed the technical requirements for the test, including the conditions, the equipment tested, and the measurements made. This report describes the installation details and the results of the five occupant protection experiments conducted as part of Task Order Contract DTR S57-04-D-30008/TO6. The five experiments were conducted on board two commuter rail cars as part of the full-scale train-to-train CEM equipment collision test.