The purpose of this U.S. Fire Administration special report is to document the problem of older chil¬dren who set fires resulting in serious or potentially serious consequences. The report also examines the factors that commonly are associated with intentional firesetting by teenagers and discusses a number of community programs that intervene to control arson. Historically, the term "juvenile firesetting" has been viewed as a "curious" kids' problem. Fires set by youngsters playing with matches and lighters tend to be categorized as "accidental" or "children playing." However, juvenile firesetting also includes the deliberate destruction of property by juveniles through fire, which sometimes results in casualties. This is an increasingly serious problem in most U.S. cities. Information from a 10-year U.S. Fire Administration project of direct technical assistance to over 60 jurisdictions verifies the high rate of juvenile-set fires. This report focuses on adolescent firesetters between 14 and 18 years of age. Several case studies are presented to demonstrate the impact of these arson fires and to outline the family circumstances of the youth who were involved. The report also covers how the criminal justice system has been handling teen arson and reviews and compares several treatment and intervention programs.