
Brief history of the minimum legal drinking age
After Prohibition, nearly all states restricting youth access to alcohol designated 21 as the minimum legal drinking age (MLDA). Between 1970 and 1975, however, 29 states lowered the MLDA to 18, 19, or 20. These changes occurred when the minimum age for other activities, such as voting, also were being lowered (Wechsler & Sands, 1980). Scientists began studying the effects of the lowered MLDA, focusing particularly on the incidence of motor vehicle crashes, the leading cause of death among teenagers. Several studies in the 1970s found that motor vehicle crashes increased significantly among teens when the MLDA was lowered (Cucchiaro et al, 1974; Douglas et al, 1974; Wagenaar, 1983, 1993; Whitehead, 1977; Whitehead et al, 1975; Williams et al, 1974).
With evidence that a lower drinking age resulted in more traffic injuries and fatalities among youth, citizen advocacy groups pressured states to restore the MLDA to 21. Because of such advocacy campaigns, 16 states increased their MLDAs between September 1976 and January 1983. Resistance from other states, and concern that minors would travel across state lines to purchase and consume alcohol, prompted the federal government in 1984 to enact the Uniform Drinking Age Act, which mandated reduced federal transportation funds to those states that did not raise the MLDA to 21. Among alcohol control policies, the MLDA has been the most studied: since the 1970s, at least 70 studies have examined the effects of either increasing or decreasing the MLDA.
Research findings
References
Cucchiaro S, Ferreira Jr J, Sicherman A. The Effect of the 18-Year-Old Drinking Age on Auto Accidents. Cambridge, MA: Massachusetts Institute of Technology, Operations Research Center; 1974.
Douglass RL, Filkins LD, Clark FA. The Effect of Lower Legal Drinking Ages on Youth Crash Involvement. Ann Arbor: University of Michigan, Highway Safety Research Institute; 1974.
Jones NE, Pieper CF, Robertson LS. The effect of legal drinking age on fatal injuries of adolescents and young adults. Am J Public Health. 1992;82:112-115.
National Highway Traffic Safety Administration (NHTSA). The Impact of Minimum Drinking Age Laws on Fatal Crash Involvements: An Update of the NHTSA Analyses. NHTSA Technical Report No. DOT HS 807 349. Washington, DC: NHTSA; 1989.
O'Malley PM, Wagenaar AC. Effects of minimum drinking age laws on alcohol use, related behaviors and traffic crash involvement among American youth: 1976-1987. J Stud Alcohol. 1991;52:478-491.
Single E. International perspectives on alcohol as a public health issue. J Public Health Policy. 1984;Sum:238-259.
Wagenaar AC. Minimum drinking age and alcohol availability to youth: Issues and research needs. In: Hilton ME, Bloss G, eds. Economics and the Prevention of Alcohol-Related Problems. National Institute on Alcohol Abuse and Alcoholism (NIAAA) Research Monograph No. 25, NIH Pub. No. 93-3513. Bethesda, MD: NIAAA; 1993:175-200.
Wagenaar AC. Alcohol, Young Drivers, and Traffic Accidents. Lexington, MA: Lexington Books; 1983.
Wagenaar AC, Wolfson M. Deterring sales and provision of alcohol to minors: A study of enforcement in 295 counties in four states. Public Health Rep. 1995;110:419-427.
Wechsler H, Sands ES. Minimum-age laws and youthful drinking: An introduction. In: Wechsler H, ed. Minimum Drinking Age Laws. Lexington, MA: Lexington Books; 1980:1-10.
Whitehead PC. Alcohol and Young Drivers: Impact and Implications of Lowering the Drinking Age. Ottawa: Department of National Health and Welfare, Health Protection Branch, Non-medical use of Drugs Directorate, Research Bureau; 1977.
Whitehead PC, Craig J, Langford N, MacArthur C, Stanton B, Ferrence RG. Collision behavior of young drivers: Impact of the change in the age of majority. J Stud Alcohol. 1975;36:1208-1223.
Williams AF, Rich RF, Zador PL, Robertson LS. The Legal Minimum Drinking Age and Fatal Motor Vehicle Crashes. Washington, D.C: Insurance Institute for Highway Safety; 1974.