This brief examines the impact a mandatory reentry supervision program has on spending and public safety. Kentucky requires that every inmate that is released from prison undergo post-release supervision to ensure that the inmate has the necessary monitoring and/or support in the community. Results show that the post-release supervision program: "improved public safety by helping reduce new offense rates by 30 percent; resulted in a net savings of approximately 872 prison beds per year; [and] saved more than $29 million in the 27 months after the policy took effect" (p. 1).