School safety tip lines enable its users to report perceived school-related threats and problems confidentially. An NIJ-supported research team from RTI International created a toolkit to advise school and community stakeholders on how to implement and sustain the operation of school tip lines. This article details how this toolkit provides a blueprint for educators, law enforcement professionals, community leaders, and school safety experts who are considering developing tip lines as a possible approach to preventing violence, self-harm, and other disorders. The team noted that more research is being done to better gauge the impact of tip lines on school safety and to develop tip line plans tailored to various types of school settings. As the researchers pointed out, "Tip lines are promising, but much is still unknown about their effectiveness."