Specific Listing for Hexahydrocannabinol, A Currently Controlled Schedule I Substance
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.
What this item does
The short version, using the agency's own summary text.
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.
Final rule.
Important dates
The dates that matter most for this item.
Published
May 4, 2026
Starts
May 4, 2026
Who published it
Federal rulebook sections mentioned
These are the parts of the Code of Federal Regulations cited in the filing.