This report presents the results of a survey on drug and alcohol use among students in elementary and secondary schools. Schools in 15 counties along the Texas-Mexico border were oversampled so that substance use among students could be looked at in detail. A total of 63,292 students (grades 7-12) and 43,915 students (grades 4-6) were sampled. Chapter 1 provides a general introduction along with a list of terminology. Chapter 2 discusses findings of the secondary school survey on a drug-by-drug basis in order to provide information on patterns of substance use and characteristics of students who use them. Chapter 3 presents some of the same information in terms of the relationship between substance use and students' demographic characteristics. Chapter 4 discusses risk and resiliency factors such as peer use, perceived availability and danger of substances, parental attendance at school events, and parental attitudes toward substance use. Chapter 5 discusses questions about the negative consequences of students' substance use. Chapter 6 reports on questions students were asked about their substance abuse education and resources they might use for help with a substance abuse problem. Chapter 7 discusses findings of the elementary school survey on a drug-by-drug basis. Chapter 8 examines substance use by demographic characteristics. Chapter 9 examines other risk factors among elementary students. Chapter 10 summarizes the data of the elementary and secondary school surveys and reports that students who live on the border appear to be remarkably resilient. (Contains 10 apendixes and 79 tables) (JDM)