Home / Agencies / DOJ / 2026-04657
Final Rule

Designation of Propionyl Chloride as a List I Chemical

Agency
DOJ
Document Number
2026-04657
Published
March 10, 2026
Effective Date
April 9, 2026

Abstract

The Drug Enforcement Administration is finalizing the control of propionyl chloride as a list I chemical under the Controlled Substances Act (CSA). Propionyl chloride is used in the illicit manufacture of the controlled substances fentanyl, fentanyl analogues, and fentanyl-related substances, and it is important to the manufacture of these substances. This final rule subjects handlers of propionyl chloride to the chemical regulatory provisions of the CSA and its implementing regulations.

Federal Register Source

This document is published by the Office of the Federal Register, National Archives and Records Administration. Access the full regulatory text, preamble, and docket comments below.

View Full Text on FederalRegister.gov →

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Frequently Asked Questions

What is the 2026-04657 Federal Register document?
Document 2026-04657 is a Final Rule published by the Department of Justice in the Federal Register on March 10, 2026, with an effective date of April 9, 2026. The Drug Enforcement Administration is finalizing the control of propionyl chloride as a list I chemical under the Controlled Substances Act (CSA). Propionyl chloride is used in the illicit manufacture of the controlled substances fentanyl, fentanyl analogues, and fentanyl-related substances, and it is important to the manufacture of these substances. This final rule subjects handlers of propionyl chloride to the chemical regulatory provisions of the CSA and its implementing regulations. View the original at https://www.federalregister.gov/documents/2026/03/10/2026-04657/designation-of-propionyl-chloride-as-a-list-i-chemical.
Is document 2026-04657 an economically significant rule?
No. Document 2026-04657 is not classified as economically significant under Executive Order 12866. Economically significant rules require OIRA review and are estimated to have impacts of $100 million or more per year.

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