<Tr> <Td_colspan="2"> Gonzales v. Raich United States v. Oakland Cannabis Buyers' Cooperative McFadden v. United States </Td> </Tr> <P> The Controlled Substances Act (CSA) is the statute establishing 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 . </P> <P> The legislation created five Schedules (classifications), with varying qualifications for a substance to be included in each . Two federal agencies, the Drug Enforcement Administration (DEA) and the Food and Drug Administration (FDA), determine which substances are added to or removed from the various schedules, although the statute passed by Congress created the initial listing . Congress has sometimes scheduled other substances through legislation such as the Hillory J. Farias and Samantha Reid Date - Rape Prevention Act of 2000, which placed gamma hydroxybutyrate in Schedule I and sodium oxybate in Schedule III . Classification decisions are required to be made on criteria including potential for abuse (an undefined term), currently accepted medical use in treatment in the United States, and international treaties . </P> <Table> <Tr> <Th> Regulation of therapeutic goods in the United States </Th> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> Prescription drugs Over-the - counter drugs </Td> </Tr> <Tr> <Td> Law (show) Federal Food, Drug, and Cosmetic Act Comprehensive Drug Abuse Prevention and Control Act of 1970 Controlled Substances Act Prescription Drug Marketing Act Drug Price Competition and Patent Term Restoration Act Hatch - Waxman exemption Marihuana Tax Act </Td> </Tr> <Tr> <Td> Government agencies (show) Department of Health and Human Services Food and Drug Administration Department of Justice Drug Enforcement Administration </Td> </Tr> <Tr> <Td> Process (show) Drug discovery Drug design Drug development New drug application Investigational new drug Clinical trial (Phase I, II, III, IV) Randomized controlled trial Pharmacovigilance Abbreviated New Drug Application Fast track approval Off - label use </Td> </Tr> <Tr> <Td> International coordination (show) International Conference on Harmonisation of Technical Requirements for Registration of Pharmaceuticals for Human Use Uppsala Monitoring Centre World Health Organization Council for International Organizations of Medical Sciences Single Convention on Narcotic Drugs </Td> </Tr> <Tr> <Td> Non-governmental organizations (show) Institute of Medicine Research on Adverse Drug events And Reports NORML </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> </Table>

Who has the ability to add delete or reschedule a drug as more information becomes available