The creation of schedules for controlled substances is a key feature of which 1970 law?

• A. The Controlled Substances Act
• B. The Harrison Narcotics Tax Act
• C. The Pure Food and Drug Act
• D. The Comprehensive Drug Abuse Prevention Act

Answer: (A)

The scheduling of controlled substances is established by the Controlled Substances Act. This law, enacted in 1970, created a five-tier schedule system that classifies drugs based on their potential for abuse, accepted medical use, and safety. It also set up the regulatory framework and enforcement mechanisms for those substances. Earlier laws like the Harrison Narcotics Tax Act focused on taxation and import controls, and the Pure Food and Drug Act addressed labeling and adulteration, but neither introduced a formal scheduling framework. The broader 1970 package is sometimes referred to as the Comprehensive Drug Abuse Prevention and Control Act, but the scheduling mechanism itself comes from the Controlled Substances Act, making it the best answer.