In 2007, there were 1,543 traffic crashes involving 1,580 emergency service vehicles in the State of Missouri. Nine persons were killed and 459 persons were injured. Of the 1,580 emergency service vehicles involved, 380 (24.1 percent) were on an emergency run at the time of the crash. Police vehicles account for the majority of emergency service vehicles involved in Missouri traffic crashes. Of the 1,580 emergency vehicles involved in 2007 traffic crashes, 1,218 (77.1 percent) were law enforcement vehicles. A key factor is the greater number of police vehicles in operation compared to other emergency vehicles in the report. Of the 1,580 emergency vehicles involved in traffic crashes in 2007, 170 or 10.8 percent were fire vehicles and 156 or 9.9 percent were ambulances. Ambulances made up a higher proportion of emergency service vehicles. Of the 380 emergency service vehicles involved in traffic crashes while on emergency runs, 44 (11.6 percent) were ambulances. The purpose of this report is to provide the Missouri State Highway Patrol, the Missouri Department of Transportation, Highway Safety Division, and other State and local authorities with information on the problem of emergency service vehicle traffic crashes in the State of Missouri. Tables, figures, and glossary