Which entity enforces the Controlled Substances Act in the United States?

• A. U.S. Food and Drug Administration
• B. U.S. Drug Enforcement Administration
• C. National Institute on Drug Abuse
• D. Department of Homeland Security

Answer: (B)

The main idea here is who has the authority to police and regulate controlled substances. The Drug Enforcement Administration is the federal agency responsible for enforcing the Controlled Substances Act, which includes regulating the manufacture, distribution, and dispensing of controlled substances, as well as registering practitioners, pharmacies, and suppliers and conducting related investigations. The FDA handles drug approval, safety, and labeling, but it does not enforce the CSA’s controls on scheduling and distribution. The National Institute on Drug Abuse is a research organization, not an enforcement body, and the Department of Homeland Security focuses on security and border control, with enforcement roles that are separate from the CSA’s primary enforcement responsibilities.