The purpose of this study is to compare the drinking and associated behavior of fraternity and sorority members to that of nonmembers. The project is national in scope, and its results can help determine whether public perceptions of alcohol use by students affiliated with Greek social organizations are warranted. This study will also lend some insight into whether legislative initiatives to reduce hazardous use of alcohol (e.g., PL 101-226, Drug-Free Schools and Communities Act Amendments of 1989), campus-based substance abuse programs, and more rigorous enforcement of campus policies and civil laws by fraternities themselves have reduced the variance between fraternity and nonfraternity level of alcohol consumption and associated negative behaviors. (Contains 5 tables.)