Laws by state

HHC

Where it is legal, restricted or banned in every US state we track, with the law behind each status and the latest news on changes.

Federal status

The DEA published a final rule on May 4, 2026 giving HHC its own Schedule I listing and drug code, stating that hemp-derived HHC made by chemical conversion is synthetic and not protected by the 2018 Farm Bill. Hemp companies are challenging the rule in the Fourth and Ninth Circuits, and the federal hemp redefinition taking effect December 11, 2026 separately excludes synthesized cannabinoids from hemp.

Status by state ·

HHC

Legal status in every state

All compounds, all states

State

Status

Limits

Key law

We don't track this cannabinoid state by state yet. The table below compares the five compounds we do track.

Open the state-by-state map

Overview

What to know

HHC (hexahydrocannabinol) is a hydrogenated form of THC. Commercial HHC is made from hemp-derived CBD through a multi-step chemical process, and it produces effects users compare to delta-8 or mild delta-9. It became popular as states began restricting delta-8.

HHC's federal position has hardened in 2026. The DEA had said in 2023 that HHC does not occur naturally in the plant and can only be obtained synthetically. In May 2026 it published a rule specifically listing HHC in Schedule I, following the United Nations' 2025 scheduling of HHC. Two hemp companies have asked federal appeals courts to review that rule, arguing the Farm Bill protects hemp derivatives, and the DEA has opposed their requests.

On top of the DEA rule, the federal hemp redefinition excludes cannabinoids synthesized outside the plant and caps total THC-type cannabinoids at 0.4 mg per container, effective December 11, 2026. Several states already ban HHC by name. Check your state's rules.

Latest

Latest news and analysis

All news

FAQ

Common questions

Is HHC legal federally?

The DEA's position is no. A May 4, 2026 DEA rule lists HHC as a Schedule I substance, and that rule is being challenged in two federal appeals courts. The federal hemp redefinition taking effect December 11, 2026 also excludes synthesized cannabinoids like commercial HHC from hemp.

Is HHC natural or synthetic?

Commercial HHC is made by chemically hydrogenating cannabinoids derived from hemp. The DEA calls it "a synthetic substance that is structurally related to tetrahydrocannabinols."

Did the DEA ban HHC?

The DEA published a final rule on May 4, 2026 titled "Specific Listing for Hexahydrocannabinol, a Currently Controlled Schedule I Substance." The DEA says HHC was already controlled as a synthetic THC and the rule adds a specific listing and drug code.

Will HHC show up on a drug test?

This hub covers legal status only. Testing outcomes vary by test type and product, so check with the testing lab or program.