This half-day professional development is designed for district and building PBIS leaders who are guiding and sustaining high-quality PBIS implementation. Participants will be introduced to the updated PBIS Tiered Fidelity Inventory (TFI) 3.0, advanced Tier II & III (p.m.), exploring key revisions and how the tool can be used to more accurately assess and monitor PBIS implementation at both the building and district levels.