Durable, and adaptable school-wide PBIS in a school requires systemic support that extends beyond an individual school. It is important to organize multiple schools (e.g., cluster, complex, district, county, state) so that a common vision, language, and experience are established. This approach allows districts and states to improve the efficiency of resource use, implementation efforts, and organizational management. An expanded infrastructure also enhances the district and state level support (e.g., policy, resources, competence) and provides a supportive context for implementation at the local level.