Fatalities in road traffic are not only due to accidents, some of them are suicides. Sweden has since 2010 described statistics on suicides in road traffic separately from fatalities caused by accidents. To implement this, a method has been developed for classification of road traffic fatalities in order to determine if the fatality was caused by an accident or by a suicide.The work has been carried out in cooperation between The Swedish Transport Administration, The Swedish Transport Agency, The National Board of Forensic Medicine and Suicide Prevention Western Sweden.