Specific Listing for 3-Chloromethcathinone, A Currently Controlled Schedule I Substance

What it does

The Drug Enforcement Administration (DEA) is establishing a specific listing and DEA Controlled Substances Code Number (drug code) for 1-(3-chlorophenyl)-2-(methylamino)propan-1-one (3- chloromethcathinone; 3-CMC) in schedule I of the Controlled Substances Act (CSA). Although 3-chloromethcathinone is not specifically listed in schedule I of the CSA with its own unique drug code, it is a schedule I controlled substances in the United States because it is a positional isomer of 4-chloromethcathinone, which is a schedule I hallucinogen. Therefore, DEA is simply amending the schedule I hallucinogenic substances list in its regulations to separately include 3- chloromethcathinone.

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 26 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 November 6, 2026.

The agency's dates, word for word.

Check it yourself

• The document in the Federal Register
• Docket DEA-2026-1981 on Regulations.gov
• Title 21 on eCFR

The record as published

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