Specific Listing for Hexahydrocannabinol, 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 6,6,9-trimethyl-3-pentyl-6a,7,8,9,10,10a-hexahydro-6H- benzo[c]chromen-1-ol (also known as hexahydrocannabinol, and HHC) in schedule I of the Controlled Substances Act (CSA). Although hexahydrocannabinol 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 under drug code 7370 because it meets the definition of tetrahydrocannabinols, a schedule I hallucinogen. Therefore, DEA is simply amending the schedule I hallucinogenic substances list to separately include hexahydrocannabinol.

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 May 4, 2026.

The agency's dates, word for word.

Check it yourself

• The document in the Federal Register
• Docket DEA-2026-0727 on Regulations.gov
• Title 21 on eCFR

The record as published

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