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This paper addresses serious, occupant crash injuries from: (a) head impacts with A-pillars, roof headers, and roof side rails, and (b) occupant entrapment and roof intrusion in rollover accidents. It also discusses two less frequent causes of injury: (a) fires in crashes, and (b) occupant ejection through the roof and rear window or rear doors. The paper estimates the relative frequencies of these types of injuries, classified according to the body area injured and the vehicle interior component responsible for the injury. Data for these estimates is from the National Crash Severity Study augmented by the 1979 Fatal Accident Reporting System data. Also, this paper addresses the potential for reducing the severity of these injuries in light motor vehicles, with particular emphasis on AIS 3 and more serious injuries.