P UURRENT strategies to reduce alcohol-related problems, including drunk driving, focus primarily on changing the behavior of individuals. Educational campaigns and legal sanctions are designed to influence the attitudes e q and behaviors of individuals regarding drinking and > a driving. Researchers have supported this individual-oriented approach by providing decision makers with a plethora of empirical and descriptive data on the characteristics of people who drive under the influence of alcohol. In spite of this wealth of information, the success of the current policies to reduce alcohol-related traffic accidents has been limited. Recently, an increasing amount of attention has been directed towards a public health approach to preventing alcohol problems. This approach calls for supplementing individual-level change strategies with strategies that address the environmental and social factors associated with drinking problems (1-6). From a public health perspective, individual-level change strategies are necessary, but not sufficient, to address alcohol problems; changes must also take place in the larger systems that impact on individuals. For drinking and driving problems, one example of a larger system, or social environment, that deserves attention is the places where impaired drivers receive their last drink before driving. Various factors related to these drinking locations may contribute to the combination of drinking and driving behaviors. Therefore, an understanding of the relationship between impaired driving and place of last drink could have significant implications for prevention policies.