Schedules of Controlled Substances: Placement of Three Specific Fentanyl-Related Substances in Schedule I

The Drug Enforcement Administration proposes placing three fentanyl-related substances, as identified in this proposed rule, in schedule I of the Controlled Substances Act. These three substances fall within the definition of fentanyl-related substances set forth in the February 6, 2018 temporary scheduling order. Through the Temporary Reauthorization and Study of Emergency Scheduling of Fentanyl Analogues Act, which became law on February 6, 2020, Congress extended the temporary control of fentanyl-related substances until May 6, 2021. This temporary order was subsequently extended multiple times, most recently on March 15, 2025, which extended the order until September 30, 2025. If finalized, this action would make permanent the existing regulatory controls and administrative, civil, and criminal sanctions applicable to schedule I controlled substances on persons who handle (manufacture, distribute, import, export, engage in research, conduct instructional activities or chemical analysis, or possess), or propose to handle these three specific controlled substances.