Data / Federal rules / 2026-08104
Schedules of Controlled Substances: Placement of MDMB-4en-PINACA in Schedule I
The Drug Enforcement Administration published this final rule in the Federal Register on April 24, 2026. It took effect on April 27, 2026.
SpecStream is the live web data engine for teams and agents. It reads every rule and proposed rule in the Federal Register each morning, and this page is that reading. Name your industry once and new rules, comment deadlines and effective dates arrive in your sheet, CRM, Slack or agent as they are published.
What the agency says
With the issuance of this final rule, the Drug Enforcement Administration places methyl 3,3-dimethyl-2-(1-(pent-4-en-1-yl)-1H- indazole-3-carboxamido)butanoate (other name: MDMB-4en-PINACA), including its salts, isomers, and salts of isomers whenever the existence of such salts, isomers, and salts of isomers is possible, in schedule I of the Controlled Substances Act. This action is being taken, in part, to enable the United States to meet its obligations under the 1971 Convention on Psychotropic Substances. This action imposes 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 with, or possess) or propose to handle MDMB-4en-PINACA.
Key facts
- Document number
- 2026-08104
- Type
- Final rule
- Action
- Final rule
- Agency
- Justice Department; Drug Enforcement Administration
- Published
- April 24, 2026
- Takes effect
- April 27, 2026
- Dates
- Effective April 27, 2026.
- Docket
- Docket No. DEA-1356
- Code of Federal Regulations
- 21 CFR 1308
- Topics
- Administrative practice and procedure; Drug traffic control; Reporting and recordkeeping requirements
- Pages
- 6
Other documents from the Drug Enforcement Administration
Everything from the Drug Enforcement Administration · Rules on administrative practice and procedure · Rules on drug traffic control · Rules on reporting and recordkeeping requirements · Published in April 2026
Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.