This document offers guidance to college housing officers in implementing substance-free campus housing. The guide offers reasons for supporting the establishment of substance-free residence halls; provides evidence that such living areas benefit both students and the college; and offers suggestions for setting up and maintaining substance-free housing. One section of the report covers starting substance-free housing areas, including finding a leader, conducting a needs assessment, involving all pertinent parties, developing a proposal, anticipating questions and concerns, and picking the location. Other sections cover recruiting and screening applicants, contracts with students, selecting and training housing staff, special programming, enforcing rules, and evaluation. Four case studies are presented: two of fraternities that have become substance-free (the University of Maine and Indiana University); and two of "recovery" housing at Rutgers University (New Jersey) and Dartmouth College (New Hampshire). A resource list and list of related publications are appended. (Contains 11 endnotes.) (CH)