In a recent series of experiments, fourteen unembalmed cadavers were subjected to forty-four blunt lateral impacts at velocities of approximately 4.5, 6.7, or 9.4 m/s with a 15 cm flat 23.4 kg pendulum. Chest and abdominal injuries consisted primarily of rib fractures with a few cases of lung or liver laceration in the highest severity impacts. There were two cases of public ramus fracture in the pelvic impacts. In this study, biomechanical responses from the individual tests were normalized to the 50th percentile adult male by an established procedure. Corridor and average responses were determined for the scaled force-deflection and force-time data at three impact severities. Since serious injury occured primarily in the highest severity tests, the 6.7 and 9.4 m/s normalized response corridors define the key aspects of biofidelity in blunt lateral impact. The EUROSID and SID dummy have responses that are very different from the essential characteristics of the human impact response as determined in this study. The maximum Viscous response had the best correlation with injury risk for chest and abdominal impacts. A tolerance level of VC = 1.5 m/s for the chest and VC = 2.0 m/s for the abdomen was determined for a 25% probability of serious injury. Maximum compression was similarly set at C = 38% for the chest and at C = 44% for the abdomen. Pelvic tolerance to pubic ramus fracture was set at 27% compression, since acceleration of the hip did not correlate with injury.