The National Association of Chronic Disease Directors (NACDD) designed and facilitated a two-day summit to share and celebrate the success of states working to prevent type 2 diabetes by expanding the uptake of the evidence-based National Diabetes Prevention Program. The summit, held in Atlanta from Feb. 21-22, focused on the collective impact of state health departments working with their partners to achieve priorities developed by each state. Since 2012, NACDD assisted 30 state health departments to build strategic partnerships and host a statewide meeting to engage their stakeholders to develop and implement a diabetes prevention action plan. Dr. Ann Albright, Director of the CDC’s Division of Diabetes Translation, spoke at the summit and stressed the unprecedented accomplishments of the National DPP and CDC’s continued support. NACDD extends special thanks to states and their partners for submitting 41 outcome briefs which summarized their successes to date and helped shape the summit agenda. The summit included a peer-to-peer session to collect successful strategies, new tools and ideas, details on troubleshooting problems, and technical assistance needs. A summary report is being developed to highlight state actions and outcomes, reveal insights, and demonstrate the collective impact of this work.