Beaver County Therapeutic Responses for Intervening Early (THRIVE) - The primary focus of Beaver County Therapeutic Responses for Intervening Early (BC-THRIVE) is to support and provide resources to improve the mental health outcomes for children, youth, and young adults through age 21 who are at risk for or with Serious Emotional Disturbances (SED), along with their families in Beaver County, Pennsylvania. BC-THRIVE will include an additional emphasis on supporting children ages birth through five. Beaver County, located in southwestern Pennsylvania (PA), is approximately 30 miles from Pittsburgh, bordering Ohio and West Virginia. The racial composition is 93% Caucasian followed by African Americans at 8% (U.S. Census Bureau 2020). According to the 2020 Census, there are 37,524 children and youth under the age of 21. 40% of those children are eligible for Medicaid funded behavioral health services. This includes 8,357 children birth to five years old. BC-THRIVE will build on existing successful collaborations among behavioral health, child welfare, and schools to enhance and expand its System of Care (SOC). This expansion will create a collaborative infrastructure to support Early Intervention (EI) and additional school-based mental health services and supports. BC-THRIVE will strengthen cross-agency collaboration, enhance policies and procedures, secure sustainable funding, and increase evidence-based and evidence-informed services and practices. Family-driven programs will be provided by individuals familiar with the local values, culture, and norms. The BC-THRIVE expanded and enhanced SOC, along with the implementation of additional school-based services and supports, will change the life trajectory for children and youth in Beaver County, and provide important supports to their families.