Is Delta-10 THC Legal in Michigan?

Last reviewed: May 21, 2026

Restricted. Michigan's 2021 PA 56 (House Bill 4517), signed July 13, 2021 and effective October 11, 2021, folded delta-10 THC and every other tetrahydrocannabinol isomer into the marihuana definition under the Michigan Regulation and Taxation of Marihuana Act. Only Cannabis Regulatory Agency-licensed retailers may sell delta-10 in Michigan. Hemp shops, smoke shops, gas stations, and online retailers shipping into the state cannot.

Michigan Cannabis and Hemp Overview

Michigan voters approved adult-use cannabis through Proposal 1 of 2018 (effective December 6, 2018), codified at MCL 333.27951 et seq. The Cannabis Regulatory Agency administers MRTMA and the Michigan Medical Marihuana Act. Industrial hemp cultivation runs through the Michigan Department of Agriculture and Rural Development under the Industrial Hemp Growers Act (2014 PA 547, as amended).

Delta-10 is an isomer of delta-9 THC produced almost exclusively by chemical conversion from hemp-derived CBD. That synthetic-conversion route is exactly what 2021 PA 56 was written to capture. For comparison with how Michigan treats delta-8, see our Michigan delta-8 page.

What Michigan Law Actually Says About Delta-10

2021 PA 56 amended MRTMA's definitions to include any tetrahydrocannabinol, whether artificially or naturally derived, and any structural, optical, or geometric isomer of THC. Delta-10 is by name an isomer of delta-9 and falls inside the definition. The CRA implementation bulletin titled All THC Products Derived From the Cannabis Plant to Fall Under MRA Regulation Effective October 11, 2021 directs that no person may manufacture, possess, transfer, sell, or give away these products without a CRA license.

The practical effect is that delta-10 may only move through the CRA-licensed cannabis channel, with METRC tracking, MRTMA testing, and the 21-and-up minimum at point of sale.

How Enforcement Has Played Out

CRA enforcement against unlicensed sales of synthetic-conversion isomers, including delta-10, began the week 2021 PA 56 took effect and has continued through 2025. Stop-sale orders to smoke shops, product seizures, and prosecutor referrals are the standard response. The CRA accepts public reports at MRA-Enforcement@michigan.gov. Senate Bills 599-602, which passed the Michigan Senate on December 17, 2025 by a 28-7 margin and now sit in the House, would add a consumable hemp processor license and bar intoxicating cannabinoids from non-licensed retail.

What This Means for Retailers Selling Delta-10 in Michigan

• If you are not a CRA-licensed cannabis retailer, do not stock delta-10. Hemp retail cannot sell delta-10 under 2021 PA 56.
• If you are a CRA licensee, ensure delta-10 SKUs are tracked in METRC and meet MRTMA packaging, labeling, and laboratory-testing requirements.
• Verify ID at every transaction. The 21-and-up minimum under MRTMA applies.
• Maintain certificates of analysis documenting cannabinoid origin and the conversion process. Synthetic-conversion documentation matters in any subsequent enforcement review.
• Plan now for federal H.R. 5371 §781, which excludes synthetic and chemically converted cannabinoids from the federal hemp definition effective November 12, 2026. Delta-10 sits squarely inside the excluded category.
• Track SB 599-602 in the Michigan House and subsequent CRA rulemaking.

What This Means for Consumers Buying Delta-10 in Michigan

You cannot legally buy delta-10 at a Michigan smoke shop or hemp retailer. CRA-licensed dispensaries may carry delta-10 SKUs under MRTMA testing and packaging rules. Delta-10 produces effects similar to delta-9 THC and metabolites overlap with delta-9 on most standard drug tests. Out-of-state online shipments into Michigan are subject to seizure under 2021 PA 56 and the CRA bulletin.

Pending Federal Change

H.R. 5371 §781, signed November 12, 2025, excludes synthetic and chemically converted cannabinoids from the federal hemp definition, replaces the delta-9-only standard with total-THC testing, and caps finished hemp at 0.4 mg total THC per container. It takes effect November 12, 2026. Delta-10 is produced almost exclusively through hydrogenation or isomerization of hemp-derived CBD or delta-9, which places it inside the excluded category. After November 12, 2026 those products lose federal Farm Bill cover nationwide. Michigan-licensed cannabis retail will be unaffected because delta-10 already moves through MRTMA. See our Farm Bill hemp revision explainer for background.

Frequently Asked Questions

Is delta-10 THC legal in Michigan in 2026?
No at hemp retail. 2021 PA 56 captures delta-10 inside the marihuana definition. Only CRA-licensed cannabis retailers can sell it.

What is delta-10 THC and how is it different from delta-9?
Delta-10 is an isomer of delta-9 produced through chemical conversion from hemp-derived CBD or delta-9. It is structurally similar to delta-9 but the double-bond position differs, which affects shelf stability and pharmacology.

Does delta-10 THC show up on a drug test?
Delta-10 metabolites overlap with delta-9 metabolites on most standard tests and can trigger a positive. Specialty panels that distinguish them are uncommon.

Can I order delta-10 online to a Michigan address?
Out-of-state shipments of delta-10 into Michigan are unlawful under 2021 PA 56 and subject to seizure.

How does delta-10 compare to delta-8 in Michigan?
Both are isomers produced through chemical conversion from CBD. Both fall inside 2021 PA 56. See our Michigan delta-8 page.

What changes November 12, 2026?
Federal H.R. 5371 §781 takes effect. Synthetic cannabinoids lose federal Farm Bill protection. Michigan-licensed cannabis retail will be unaffected because delta-10 already moves through licensed channels.

This page is provided for informational purposes by ComplyAssistAI LLC and is not legal advice. Hemp and cannabis law in Michigan changes frequently. For business compliance questions, consult a Michigan-licensed cannabis attorney. Find one in our Cannabis Lawyer Directory.