The United Nations Office on Drugs and Crime (UNODC) has published evidence-based guidelines on preventing drug abuse in individuals, families, schools, and communities. UNODC reports that every dollar spent on prevention saves at least $10 in future health, social, and crime costs. The standards are based on work by NIDA and other drug abuse research and international organizations. The UNODC publication provides guidance for policymakers, summarizing the scientific evidence, identifying the major components of effective national drug prevention systems, and describing interventions that have been proven effective in international settings. Download International Standards on Drug Use Prevention here.