This brief builds from the progressive development and increasing momentum of integrating SMH within a PBIS framework, with this work on ISF beginning in the late 2000s (see Barrett et al., 2013). Around the nation, many communities are implementing PBIS with an ISF focus—recognizing the complementary and mutual benefits of education and mental health systems working together with other youth-serving systems (e.g., child welfare, juvenile justice; Lever et al., 2003) and co-designing a continuum of supports with families and youth (Weist et al., 2017).