The Cognitive Behavioral Intervention for Trauma in Schools (CBITS) was developed for use by school-based mental health professionals for any student with symptoms of distress following exposure to trauma. The Supporting Students Exposed to Trauma (SSET) was adapted from CBITS for use by any school personnel with the time and interest to work with students affected by trauma. The purpose of this toolkit is to assist school-based mental health professionals, school personnel, and child welfare social workers in adapting these interventions for use with youth aged 10-15 who are in foster care. The authors note that delivering a school-based mental health program to youth in foster care has many challenges, including collaboration between the child welfare and education systems, confidentiality and information sharing policies regarding youth in foster care, and identification of these youth. The toolkit was designed to help understand these challenges and provide strategies for addressing them. The toolkit has three parts: a background section, an overview of CBITS and SSET, and a step-by-step guide to implementing and adapting CBITS/SSET for youth in foster care. (Contains 4 figures and 7 tables.)