In 1992, traumatic brain injuries (TBIs) accounted for 34% of all injury deaths in the United States. To provide current estimates of TBI-associated morbidity and deaths, CDC has developed guidelines for public health agencies to use for TBI surveillance. This report describes recent findings from Colorado, Missouri, Oklahoma, and Utah based on these guidelines. These findings indicate a decrease in the annual rate of TBI and that rates of TBI are highest in association with falls and motor-vehicle crashes.