Early in 1967, the Office of Economic Opportunity was authorized to formulate and carry out programs for the prevention of narcotic addiction and the rehabilitation of narcotic addicts. Such programs were required to include provisions for the detoxification, guidance, training and job placement of narcotic addicts. The programs were aimed at persons addicted to narcotics who were residents of areas with a high incidence of poverty. Eight agencies were awarded grants for initiating or continuing progress to combat narcotics addiction. Each program was encouraged to develop an evaluation package of its own design in additon to participating in a uniform, nationwide evaluation effort. This report includes: (1) descriptive summaries of the eight programs; (2) guidelines for considered judgments as to incidence of addiction, characteristics of addicts, and relapse rate and the factors affecting it; (3) evaluation of the overall effectiveness of the various programs; and (4) data concerning the costs in dealing with addiction. The report concludes with suggestions for future research. (SJL)