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⭐ Milestone High impact Event: Oct 27, 1970 · Published: Mar 28, 2026

Federal Controlled Substances Act Enacted

The Comprehensive Drug Abuse Prevention and Control Act of 1970 classified marijuana as a Schedule I controlled substance, the most restrictive category. This superseded the Marihuana Tax Act and established the framework Minnesota would follow for decades.

President Nixon signed the Controlled Substances Act, placing cannabis in Schedule I — defined as having high abuse potential and no accepted medical use. This classification would remain the basis for both federal and Minnesota state cannabis law for over 50 years.

Filed under Milestone in THC Minnesota's coverage of Minnesota's cannabis and hemp market.

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Source Attribution

This summary was compiled from information published by Historical Archive. All facts and statements reflect the original source material. For complete details, refer to the original publication.

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