This is the last of five reports on programs for treatment and rehabilitation of narcotic addicts in Chicago, Los Angeles, San Francisco, New York City, and Washington, D. C. For each of these cities, the following information was sought: (1) how much money Government agencies were spending on narcotic treatment and rehabilitation, (2) goals of the different programs, (3) methods of treatment, (4) number of patients in treatment, (5) services available, (6) cost of the different treatment methods, (7) criteria used to select patients, (8) extent of assessments of program performance, and (9) what was learned from these assessments. This report concerns narcotic addiction treatment and rehabilitation in New York City. It is a compilation of data supplied by city and state officials and by officials of the various rehabilitation programs in New York City. Findings of the study showed that estimates of the number of addicts range from 115,000 to 300,000, that an estimated half billion dollars worth of property is stolen annually by addicts, and that about 1,400 deaths during 1972 were narcotics related. The city's approach to the problem is focused for the most part around its Addiction Services Agency, which is responsible for city-wide planning, management, evaluation, and innovation of treatment and rehabilitation projects. Information on 10 rehabilitation programs as to the program, its modality, and its goal, how a program participant is selected, number of people served by the program, whether there is a waiting list, program cost, who supplies the money, how program performance is measured, and what the latest results show comprise this report. (DB)