CAST (Coping And Support Training) is a high school-based suicide prevention program targeting youth 14 to 19 years old. CAST delivers life-skills training and social support in a small-group format (6-8 students per group). The program consists of 12 55-minute group sessions administered over 6 weeks by trained high school teachers, counselors, or nurses with considerable school-based experience. CAST serves as a follow-up program for youth who have been identified through screening as being at significant risk for suicide. In the original trials, identification of youth was done through a program known as CARE (Care, Assess, Respond, Empower), but other evidence-based suicide risk screening instruments can be used.