1961 Single Convention on Narcotic Drugs

Background

The 1961 Single Convention on Narcotic Drugs is an international treaty that establishes a global framework for controlling narcotic drugs, including rules on their production, manufacture, trade, distribution, use, and possession. It applies to states that become parties to the convention and, through them, to the public authorities, regulated industries, and medical and scientific users affected by national drug-control laws. Its practical significance lies in creating common obligations for participating countries to limit narcotic drugs to medical and scientific purposes while coordinating international oversight of controlled substances.

Adopted under the auspices of the United Nations in 1961, the convention emerged from earlier international efforts to consolidate and replace a series of preexisting drug-control treaties. It entered into force in 1964, after the required number of ratifications had been deposited. The policy context was the postwar effort to strengthen international narcotics control and to address problems associated with the diversion, illicit trade, and non-medical use of drugs subject to regulation.

The convention helped standardize the international drug-control system by establishing schedules for narcotic substances, limiting permitted uses, and requiring states to maintain domestic licensing, recordkeeping, import-export, and statistical controls. It also created or strengthened the role of international monitoring bodies in reviewing compliance and overseeing estimates and trade documentation. Over time, it became the central legal instrument for global narcotics control and has shaped the status of many substances by defining whether and how they may be produced, distributed, or used under law.