Controlled Substance Act

The Controlled Substances Act (CSA) is the statute prescribing federal U.S. drug policy under which the manufacture, importation, possession, use and distribution of certain substances is regulated. It was passed by the 91st United States Congress as Title II of the Comprehensive Drug Abuse Prevention and Control Act of 1970 and signed into law by President Richard Nixon. The Act also served as the national implementing legislation for the Single Convention on Narcotic Drugs.