The Functional Capacity Index (FCI) is a measure of a person’s capacity to function following an injury. The index values vary between 0 and 1.00, where no loss of function is defined as 0 and full loss of function is defined as 1.00. When the index is multiplied by an injured person’s life expectancy, the product is an estimate of the Lifeyears Lost as a result of the Injury (LLI). The FCI was applied to the injury data in NHTSA’s Crashworthiness Data System for the first six months of 1993 to estimate the LLI in 1993 resulting from police reported motor vehicle crashes in the United States Where at least one of the vehicles was towed from the scene. The results are disaggregated by age, gender, body region and AIS level, restraint use, vehicle type, and level of medical treatment.