An evaluation of the Air Force's Alcohol Abuse Control Program, aimed at reducing the incidence of alcohol problems and rehabilitating personnel who experience them. Important findings are: (1) Only about 10 percent of Air Force personnel with serious alcohol problems are identified and referred for rehabilitation. (2) The four-hour Education Seminars — the Air Force's major prevention effort — do not have a significant long-term impact on drinking behaviors or attitudes toward drinking. (3) Even for more impaired clients, outpatient counseling at local bases works as well as inpatient treatment at regional hospitals and is more cost-effective. (4) For less-impaired clients, the eight-hour Alcohol Awareness Seminars are more cost-effective than outpatient counseling, indicating that efficiency might be enhanced by eliminating Education Seminars and increasing Alcohol Awareness Seminars. (5) The importance of identification should be stressed at all command levels and stronger measures taken to overcome the social pressures that work against identification.