Is HHC Legal in Maryland?
May 22, 2026
Is HHC legal in Maryland? Illegal at hemp retail after the September 9, 2025 Moore appellate ruling. 2026 retailer and consumer guide.
Is HHC legal in Maryland? Illegal at hemp retail after the September 9, 2025 Moore appellate ruling. 2026 retailer and consumer guide.
Last reviewed: May 21, 2026
No. HHC is illegal at non-dispensary retail in Maryland. The Appellate Court of Maryland held on September 9, 2025 in Governor Wes Moore, et al. v. Maryland Hemp Coalition, et al. that intoxicating hemp products are now and have always been illegal outside the Maryland Cannabis Administration (MCA) licensed dispensary system. HHC is a hydrogenated synthetic cannabinoid that fits squarely inside the intoxicating-hemp category and inside the synthetic-cannabinoid enforcement tier carrying the higher $10,000 fine.
Maryland voters legalized adult-use cannabis through Question 4 in November 2022. The General Assembly passed the Cannabis Reform Act (HB 556 / SB 516), signed by Governor Wes Moore on May 3, 2023 as Chapters 254 and 255, effective July 1, 2023. The Act sits in the Alcoholic Beverages article at Md. Code Ann., Alc. Bev. Title 36. The Maryland Cannabis Administration regulates the licensed market. The Alcohol, Tobacco, and Cannabis Commission (ATCC), housed under the Comptroller, handles field enforcement against unlicensed THC sales.
The Cannabis Reform Act treats a hemp product as an intoxicating cannabis product when it exceeds 0.5 mg of THC per serving or 2.5 mg per package, and routes those products to MCA-licensed dispensaries. The tincture carve-out at 100 mg per bottle and a 15:1 or greater CBD:THC ratio is the only general non-dispensary lane for products with measurable THC. HHC, or hexahydrocannabinol, is a hydrogenated form of THC produced through chemical conversion from hemp-derived CBD or delta-9, which puts it inside the intoxicating cannabis category and inside the synthetic-cannabinoid framework. The September 9, 2025 appellate opinion at Moore, No. 1590, Sept. Term 2023, confirmed that the 2018 federal Farm Bill does not preempt the Act because Maryland operates a USDA-approved state hemp plan. For comparison with the parallel framework on delta-8, see our Maryland delta-8 page.
A Washington County preliminary injunction from October 2023 had limited ATCC enforcement against pre-July 2023 hemp retailers. The Appellate Court lifted that injunction on September 9, 2025. SB 214 and HB 12 (2025, Chapters 58 and 57), effective July 1, 2025, gave ATCC field officers citation authority and removed the need for chemical testing before enforcement. Packaging or labeling violations alone now support seizure. ATCC reported 111 intoxicating-THC enforcement cases between July 1, 2025 and the end of 2025. Fines under the Alcoholic Beverages article reach $5,000 per offense and $10,000 for synthetic THC violations. HHC is a synthetic-conversion cannabinoid and typically falls inside the higher $10,000 tier.
HHC is no longer legal at hemp retail in Maryland. The licensed cannabis market does not generally carry HHC because dispensaries focus on plant-derived cannabinoids. Adults 21 and over can purchase delta-9 cannabis products at an MCA-licensed dispensary as an alternative. HHC produces effects similar to delta-9 THC, and standard urine, saliva, and hair drug tests typically register a positive because the metabolites overlap with delta-9 metabolites.
Federal H.R. 5371 §781, signed November 12, 2025 and effective November 12, 2026, redefines hemp using a post-decarboxylation total-THC test, caps finished hemp products at 0.4 mg total THC per container, and excludes synthetic and chemically converted cannabinoids. HHC is produced through hydrogenation of hemp-derived CBD or delta-9, which puts it inside the excluded category. For background see our 2018 Farm Bill revision explainer.
Is HHC legal in Maryland in 2026?
No. After the September 9, 2025 Moore appellate ruling, intoxicating hemp including HHC is illegal at non-dispensary retail.
What is HHC and how is it different from delta-9?
HHC is hexahydrocannabinol, a hydrogenated form of THC. It is produced through chemical conversion from hemp-derived CBD or delta-9. The molecule is fully saturated, which affects shelf stability and pharmacological profile, and the conversion process places it inside the synthetic-cannabinoid tier of Maryland's enforcement framework.
Does HHC show up on a drug test?
Yes. HHC metabolites overlap with delta-9 metabolites on standard urine, saliva, and hair screens. Specialty panels that distinguish them are uncommon.
What changed on September 9, 2025?
The Appellate Court of Maryland reversed the Washington County injunction in Moore v. Maryland Hemp Coalition, No. 1590, Sept. Term 2023. The court held that intoxicating hemp products are now and have always been illegal outside the MCA dispensary system.
Can I order HHC online to a Maryland address?
The Cannabis Reform Act applies regardless of shipping origin. ATCC enforcement reaches mail-order sales delivered into Maryland.
What changes November 12, 2026?
Federal H.R. 5371 §781 takes effect and excludes synthetic and chemically converted cannabinoids from the federal hemp definition. HHC loses federal Farm Bill protection on that date.
This page is provided for informational purposes by ComplyAssistAI LLC and is not legal advice. Hemp and cannabis law in Maryland changes frequently. For business compliance questions, consult a Maryland-licensed cannabis attorney. Find one in our Cannabis Lawyer Directory.
Illegal
Md. Code Ann., Alc. Bev. Title 36 (Cannabis Reform Act, HB 556 / SB 516, 2023, Ch. 254/255); Moore v. Maryland Hemp Coalition, No. 1590, Sept. Term 2023 (Md. App. Ct. Sept. 9, 2025); SB 214 / HB 12 (2025, Ch. 58/57)
Intoxicating hemp including HHC restricted to MCA-licensed dispensaries. Outside dispensaries: 0.5 mg THC per serving and 2.5 mg per package, with a tincture carve-out of up to 100 mg THC per bottle at a 15:1 or greater CBD:THC ratio.
Yes
