This report describes the different definitions of key elements in the measurement of alcohol involvement in crashes in 20 different countries. Specifically, countries differ in their definitions of alcohol involvement (e.g., driver only, driver and pedestrian(s), over legal BAC), fatality (e.g., 30 days following a crash, 8 days, 12 months, time limits on alcohol testing (e.g., at the scene of the crash, a few hours after), percent of drivers tested, and the use of autopsy reports which are used for official statistics in some countries, but not in others. Also includes a 16-page report by the Nat. Highway Traffic Safety Admin. (NHTSA), "Alcohol Involvement in Fatal Crashes 2000."