Michigan Hemp & Hemp‑Derived Cannabinoid Laws

This guide provides educational, state‑specific information on Michigan hemp and hemp‑derived cannabinoid laws as of November 1, 2026. It is for informational purposes only and not legal advice.

Michigan, USA hemp laws: quick overview

Michigan’s Industrial Hemp Growers Act (Public Act 220 of 2020, effective October 16, 2020, as amended) aligns state hemp cultivation with federal law, requiring that industrial hemp contain no more than 0.3% delta‑9‑THC on a dry‑weight basis; exceeding that threshold—even up to 1.0% total delta‑9‑THC—is considered a negligent violation under MCL 333.29601(c) ([legislature.mi.gov](https://www.legislature.mi.gov/documents/mcl/pdf/mcl-Act-220-of-2020.pdf?utm_source=openai)). Growers must register with MDARD and request pre‑harvest sampling 20 to 30 days before harvest; MDARD inspectors collect samples and test at the Geagley Laboratory, with disposal required for non‑compliant lots ([michigan.gov](https://www.michigan.gov/mdard/plant-pest/plant-health/industrial-hemp/resources?utm_source=openai)). Local governments are preempted from imposing stricter rules than the state’s hemp law ([michigan.gov](https://www.michigan.gov/mdard/plant-pest/plant-health/industrial-hemp/resources?utm_source=openai)). Separately, Public Act 56 of 2021 (effective October 11, 2021) reclassified delta‑8 THC (and THC‑O‑acetate) as marijuana, placing them under regulation by the Marijuana Regulatory Agency (MRA); unlicensed sale or manufacture is illegal ([michigan.gov](https://www.michigan.gov/cra/resources/consumer-connection/delta-8-information?utm_source=openai)).

Shipping guidance

Inbound shipments of raw hemp (≤ 0.3% Δ9‑THC) are allowed for registered growers; pre‑harvest sampling must be arranged with MDARD. Age verification is not required for raw hemp shipments. Processed hemp products (e.g., extracts) require a hemp processor‑handler license from the CRA. Delta‑8 products are regulated as marijuana and must comply with MRA licensing and shipping rules.

Testing & COA guidance

MDARD requires pre‑harvest sampling by trained inspectors 20–30 days before harvest; samples are tested at MDARD’s DEA‑registered Geagley Laboratory. Testing must confirm Δ9‑THC ≤ 0.3% dry weight (plus measurement uncertainty). Certificate of Analysis must be retained; non‑compliant lots must be destroyed. No explicit ISO 17025 requirement stated in state sources.

What to buy

Compliant hemp flower, grain, fiber, microgreens, and cannabinoid extracts containing ≤ 0.3% Δ9‑THC (dry weight), sold by registered growers or licensed processors.

What to avoid

Products exceeding 0.3% Δ9‑THC; delta‑8 THC or THC‑O‑acetate products without MRA licensing; any hemp‑derived cannabinoids not explicitly permitted remain in legal limbo.

How to shop compliant, tested hemp

• Delta‑9 THC must not exceed 0.3% dry weight per Industrial Hemp Growers Act (Act 220 of 2020)
• Pre‑harvest sampling by MDARD required 20–30 days before harvest
• Delta‑8 THC is regulated as marijuana by the MRA since October 11, 2021
• Hemp growers must register with MDARD; processors need CRA hemp processor‑handler license
• Non‑compliant hemp (>0.3% Δ9 THC) must be destroyed without compensation

Helpful resource: Learn more about Michigan, USA

Educational content only — not legal or medical advice.

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