The LIFESKILLS®TRAINING (LST) Middle School Program is a universal program that targets all middle/junior high school students.  Initial intervention begins in grades 6 or 7, depending on the school structure, with booster sessions in the two subsequent years.  LST also has elementary and high school versions of its program. The elementary and high school versions of LST have not been empirically proven with the same rigorous evaluation as the Blueprints for Violence Prevention Model programs and therefore not eligible for funding by the Pennsylvania Commission on Crime and Delinquency’s evidence-based initiative.