THE REPORT DEFINES USE AND ABUSE AND IDENTIFIES THE TYPES OF DRUGS WHICH FALL UNDER INTERNATIONAL CONTROL. METHODS AND SCOPE OF INTERNATIONAL DRUG CONTROL ARE BRIEFLY DISCUSSED; THE FUNCTIONS OF THE TWO INTERNATIONAL CONTROL ORGANS, THE UNITED NATIONS COMMISSION ON NARCOTIC DRUGS AND THE INTERNATIONAL NARCOTICS CONTROL BOARD, ARE SUMMARIZED. THE INTERNATIONAL DRUG CONTROL SYSTEM IS TRACED FROM ITS INCEPTION IN 1909 (SHANGHAI OPIUM COMMISSION) THROUGH TREATIES CONCLUDED BY THE UNITED NATIONS IN 1972. DRUGS UNDER INTERNATIONAL CONTROL ARE CHARACTERIZED, INCLUDING NATURAL AND SYNTHETIC OPIATES, CANNABIS, COCA LEAF AND COCAINE, HALLUCINOGENS, STIMULANTS, AND SEDATIVES-HYPNOTICS. ALSO DISCUSSED ARE PREVENTION OF DRUG ABUSE AND TREATMENT AND REHABILITATION OF ADDICTS, AS WELL AS SUPPRESSION OF ILLICIT TRAFFIC IN DRUGS. A DESCRIPTION OF NEW METHODS IN DRUG ABUSE CONTROL DETAILS TECHNICAL ASSISTANCE, THE UNITED NATIONS FUND FOR DRUG ABUSE CONTROL, ACTIVITIES OF THE UNITED NATIONS DIVISION OF NARCOTICS, AND METHODS OF STRENGTHENING THE TREATY SYSTEM. APPENDIXES PRESENT LISTS OF INSTITUTIONS PROVIDING INFORMATION ON DRUGS OF ABUSE AND OF PUBLICATIONS RELATING TO DRUGS ISSUED BY THE UNITED NATIONS AND SPECIALIZED AGENCIES.