The 2022 Legislature directed the Office of Superintendent of Public Instruction (OSPI) to create an advisory workgroup with specific participants to report back on topics related to student isolation and seclusion. This legislative report provides a background on the workgroup, history of isolation and restraint, current practices in the state of Washington, and detailed recommendations of the workgroup. The workgroup developed four categories of recommendations: (1) Eliminating the use of isolation and chemical restraint; (2) Access to proactive and effective mental health and trauma informed behavioral supports; (3) Training on de-escalation practices; and (4) Improving data collection, use for decision making, and monitoring. This report includes sample legislative text to amend House Bill (HB) 1240 to enact the recommendations.