The National Highway Traffic Safety Administration (NHTSA) has adopted the policy to use the term, Crash. Accordingly the term, Crash, is used throughout this manual. As used in this coding manual, "Crash" shall always refer to a Motor Vehicle Traffic Accident as rigorously defined in ANSI Standard, D16.1 - The Manual on Classification of Motor Vehicle Traffic Accidents. Incidents or scenarios involving collision events, and those involving non-collision events, as defined in ANSI D16.1, are included.