Welcome to the home page of the Tennessee Gatekeeper Training Implementation Support System (GTISS)—dedicated to the prevention of suicide across the life span. We hope this website will help you make the most of gatekeeper training for the prevention of suicide – whether it is through Applied Suicide Intervention Skills Training (ASIST), Connect/Frameworks, Question, Persuade, and Refer (QPR), or any other gatekeeper training program. The tools we have developed can help any organization or community achieve the goal of establishing an effective network of assistance for people who are at risk for suicide. Contributors to this site have been involved in various aspects of the gatekeeper training process – as trainers, researchers, project managers, and gatekeepers. The GTISS is our attempt to simplify all we’ve learned from research and experience – and help you put it into practice.