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Final ruleTook effect April 1, 2026

Schedules of Controlled Substances: Placement of Clonazolam, Diclazepam, Etizolam, Flualprazolam, and Flubromazolam in Schedule I of the Controlled Substances Act

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register March 2, 2026. Document 2026-04112. Updated Nov. 14, 2026.

What it does

With the issuance of this final rule, the Drug Enforcement Administration places clonazolam, diclazepam, etizolam, flualprazolam, and flubromazolam and their salts, isomers, and salts of isomers, whenever the existence of such salts, isomers, and salts of isomers is possible within the specific chemical designation, in schedule I of the Controlled Substances Act. These five substances were temporarily scheduled in an order dated July 26, 2023, and subsequently extended until July 26, 2026, pursuant to an extension published elsewhere in this issue of the Federal Register. This action also enables the United States to meet its obligations under the 1971 Convention on Psychotropic Substances. This action makes permanent the existing regulatory controls and administrative, civil, and criminal sanctions applicable to schedule I controlled substances on persons who handle (manufacture, distribute, reverse distribute, import, export, engage in research, conduct instructional activities or chemical analysis, or possess), or propose to handle these five specific controlled substances.

The Drug Enforcement Administration's summary, as published in the Federal Register.

What changed in the regulation

1 part of Title 21 of the Code of Federal Regulations:

21 CFR 1308

Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).

Compared with

The Drug Enforcement Administration has published 27 final rules in 2026 so far, compared with 17 in all of 2025.

Counted by the Tribune from Federal Register records since Jan. 1, 2025.

What happens next and when

Effective date: April 1, 2026.

The agency's dates, word for word.

Document number2026-04112
ActionFinal rule.
AgenciesJustice Department; Drug Enforcement Administration
PublishedMarch 2, 2026
Effective dateApril 1, 2026
DocketDEA-2022-0145

Source: the Federal Register (public domain). The document in the Federal Register