A growing body of evidence has demonstrated the negative impact that punitive discipline has on children and youth. To make changes in school discipline, it is important for all stakeholders to know about the latest research, understand the local impact of punitive discipline on systems and youth, and coordinate a collaborative response. One approach that some states have used is to host a statewide (or regional or local) summit with key stakeholders. This document is a quick guide that organizations, agencies, and other key stakeholders engaged in improving school discipline can use to understand the major steps needed in planning a summit focused on school discipline. It includes a planning worksheet with helpful templates and questions to consider. This guide would be most useful for those who are in the beginning stages of summit planning. It's important to note that planning a summit can take up to 4-6 months for a smaller event and up to one year for a larger event. The guide contains: (1) Initial steps for planning a coordinated state, regional, or local summit on supportive school discipline, improving justice-school partnerships, and fostering positive outcomes for youth in a state/community; (2) Suggested practices for holding a successful summit; and (3) Resources that can be used during the planning, delivery, and follow-up phase.