The 24/7 Sobriety Program uses a swift, certain, and moderate sanctioning approach to reduce alcohol and drug-involved driving among individuals who have been previously convicted of driving under the influence. First implemented in South Dakota in 2005, clients served through this program are tested at least twice per day using a breathalyzer test and subject to immediate jail time for positive test results. Evaluations conducted to date have found positive outcomes associated with the program. This article provides a summary of how the program works, prior research findings, and implementation considerations.