New Hampshire Hemp & Hemp‑Derived Cannabinoid Laws

This guide provides educational, state‑specific information on New Hampshire hemp and hemp‑derived cannabinoid laws. It is for informational purposes only and does not constitute legal advice.

New Hampshire, USA hemp laws: quick overview

New Hampshire defines “hemp” as Cannabis sativa L. with delta‑9‑THC concentration not more than 0.3% on a dry weight basis under RSA 439‑A:2 (eff. July 30 2019) ([gc.nh.gov](https://gc.nh.gov/RSA/html/XL/439-A/439-A-mrg.htm?utm_source=openai)). RSA 433‑C:1 similarly defines “industrial hemp” with the same 0.3% delta‑9 THC limit (eff. Sept. 11 2015) ([law.justia.com](https://law.justia.com/codes/new-hampshire/title-xl/chapter-433-c/section-433-c-1/?utm_source=openai)). In 2023, HB 611 (Chapter 237, Laws of 2023) amended RSA 439‑A by adding §4, prohibiting sale of hemp‑derived products containing natural or synthetic THC—including delta‑8, delta‑9, or any THC isomer variant—above 0.3% dry weight, effective October 7 2023 ([gc.nh.gov](https://gc.nh.gov/RSA/html/XL/439-A/439-A-mrg.htm?utm_source=openai)). No per‑serving or per‑container mg limits are specified in state law; the prohibition is strictly by formulation dry‑weight percentage ([cannabisregulations.ai](https://www.cannabisregulations.ai/state-legality/new-hampshire-delta-9?utm_source=openai)).

Shipping guidance

Inbound shipments of hemp products are permitted provided they comply with state THC limits (≤0.3% delta‑9 THC dry weight). No specific age verification or retailer registration rules for hemp‑derived cannabinoids are detailed in state law beyond general agricultural licensing. However, hemp‑derived products exceeding 0.3% THC are illegal to ship into the state.

Testing & COA guidance

Testing must be conducted by independent laboratories located in New Hampshire and licensed under RSA 151 and He‑P 808, per He‑C 402.15 (eff. November 1 2018) ([law.cornell.edu](https://www.law.cornell.edu/regulations/new-hampshire/N-H-Admin-Code-SS-He-C-402.15?utm_source=openai)). Required panels include cannabinoid profile and contaminants (microbiologicals, mycotoxins, heavy metals, pesticides, residual solvents) with specified limits (e.g., heavy metals arsenic 4,206 ppb, cadmium 2,704 ppb, lead/mercury 8,712 ppb) ([law.cornell.edu](https://www.law.cornell.edu/regulations/new-hampshire/N-H-Admin-Code-SS-He-C-402.15?utm_source=openai)). Certificate of analysis retention and QA policies are required under ATC rules He‑C 402.15 ([law.cornell.edu](https://www.law.cornell.edu/regulations/new-hampshire/N-H-Admin-Code-SS-He-C-402.15?utm_source=openai)).

What to buy

Products derived from hemp that contain delta‑9 THC ≤0.3% dry weight are legal. This includes non‑intoxicating CBD products, hemp fiber, seed, oil, and other industrial hemp products as defined in RSA 439‑A:2.

What to avoid

Avoid any hemp‑derived products containing any THC isomer (delta‑8, delta‑9, delta‑10, THCa, HHC, etc.) above 0.3% dry weight—these are prohibited under RSA 439‑A:4 (eff. October 7 2023).

How to shop compliant, tested hemp

• Delta‑9 THC in hemp must not exceed 0.3% dry weight (RSA 439‑A:2, effective July 30 2019).
• All hemp‑derived products with any THC isomer >0.3% dry weight are prohibited (RSA 439‑A:4, effective October 7 2023).
• Industrial hemp defined under RSA 433‑C:1 with ≤0.3% delta‑9 THC dry weight.
• Testing must be done by independent labs licensed under RSA 151 and He‑P 808 (He‑C 402.15).
• Smokable hemp flower is allowed if ≤0.3% delta‑9 THC; intoxicating cannabinoids like delta‑8, delta‑10, THCa are banned if >0.3%.

Helpful resource: Learn more about New Hampshire, USA

Educational content only — not legal or medical advice.

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