http://www.jointogether.org/sa/news/summaries/reader/0%2C1854%2C577005%2C00.html
"The few existing studies of designated-driver programs offer little evidence that they are effective in reducing drunk driving, according to a new report from the U.S. Task Force on Community Preventive Services."
Elder, J., et al. (2005) Effectiveness of School-Based Programs for Reducing Drinking and Driving and Riding with Drinking Drivers: A Systematic Review. American Journal of Preventive Medicine, Supplement 1, 28(5): 288-304.
