In response to the Drug-Free Schools and Communities Act of 1986 a national study of alcohol use on college campuses was undertaken from 1989 to 1991. The study used the Core Alcohol and Drug Survey which was administered to students at 56 four-year institutions and 22 two-year institutions for a total student count of 56,361. For a longitudinal analysis, matched samples from 37 institutions that completed both pre- and post-tests were used. Analysis of the data indicated that alcohol is the primary "drug of choice" of American college students; that often students are unsure of their colleges' stand on alcohol and drug policies; that only 47 percent believe that their campuses actually enforce their policies; that 33 percent of students do not want alcohol available at campus events and that 87 percent do not want other drugs available. Trends from 1989 to 1991 showed a slight decrease in the average number of drinks consumed per week, and in the number of alcohol binges in the last two weeks. In addition, there was a 33 percent increase in the number of students reporting an awareness of campus alcohol and drug prevention efforts. The document illustrates the findings with bar graphs and explanation. Appendixes contain the core instrument and a table showing characteristics of the population surveyed. (JB)