This paper describes Head Start Trauma Smart (HSTS), an early education/mental health cross-systems partnership designed to work within the child͛'s natural setting-in this case, Head Start classrooms. The goal of HSTS is to decrease the stress of chronic trauma, foster age-appropriate social and cognitive development, and to create an integrated, trauma-informed culture for young children, parents, and staff. The HSTS program emphasizes tools and skills that can be applied in everyday settings, thereby providing resources to address current and future trauma.