Controlled Substance

Definition

A drug or chemical regulated under federal law, categorized into schedules based on their potential for abuse and accepted medical use. Marijuana is classified as a Schedule I controlled substance under federal law, meaning it is treated as having a high potential for abuse and no accepted medical use, even though many states have legalized it.

Examples

• •Because marijuana is a Schedule I controlled substance, using it — even in a state where it is legal — makes a person an 'unlawful user' under federal law and thus subject to § 922(g)(3).

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