California Hemp & Hemp‑Derived Cannabinoid Laws (2026)

This guide provides an educational overview of California’s hemp and hemp‑derived cannabinoid laws as of October 8, 2026. It is for informational purposes only and does not constitute legal advice.

California, USA hemp laws: quick overview

California defines “industrial hemp” as Cannabis sativa L. with total THC (Δ9 + THCA) ≤ 0.3 % on a dry‑weight basis, per Health & Safety Code § 11018.5, amended by AB 8 (Stats. 2025, Ch. 248), effective January 1 2026 ([law.justia.com](https://law.justia.com/codes/california/code-hsc/division-10/chapter-1/section-11018-5/?utm_source=openai)). The definition aligns with federal law but explicitly includes THCA in total THC calculation ([law.justia.com](https://law.justia.com/codes/california/code-hsc/division-10/chapter-1/section-11018-5/?utm_source=openai)). AB 8 also prohibits the sale or delivery of hemp flower and hemp pre‑rolls within the state as of January 1 2026 ([law.justia.com](https://law.justia.com/codes/california/code-hsc/division-10/chapter-1/section-11018-5/?utm_source=openai)). Emergency regulations adopted by CDPH (DPH‑24‑005) effective September 23 2024 require that industrial hemp food, beverages, dietary supplements, and food additives intended for human consumption contain no detectable THC per serving, limit packages to a maximum of five servings, and impose a minimum purchaser age of 21 ([cdph.ca.gov](https://www.cdph.ca.gov/Programs/OLS/Pages/DPH-24-005-Emergency-and-Regular_Rulemaking-Regulations-for-Industrial-Hemp.aspx?utm_source=openai)). AB 8 further mandates that hemp extract used in cosmetics may contain THC only up to 0.3 % dry‑weight and requires IHEO authorization from CDPH, effective January 1 2026 ([cdph.ca.gov](https://www.cdph.ca.gov/Programs/CEH/DFDCS/Pages/FDBPrograms/FoodSafetyProgram/AssemblyBill8FAQ.aspx?utm_source=openai)). Starting January 1 2028, intoxicating hemp products will be regulated under the cannabis framework and subject to cannabis excise tax ([cdtfa.ca.gov](https://cdtfa.ca.gov/Industry/cannabis/?utm_source=openai)).

Shipping guidance

Inbound shipments of hemp plant material (seeds, fiber, etc.) are allowed under CDFA regulation; hemp flower and inhalable hemp products may not be sold in‑state but may be manufactured for out‑of‑state sale with IHEO authorization ([testing.cannabis.ca.gov](https://testing.cannabis.ca.gov/cannabis-laws/hemp/?utm_source=openai)). No special age verification or retailer registration for non‑intoxicating hemp products; intoxicating hemp products are prohibited in‑state.

Testing & COA guidance

CDFA requires laboratory testing for hemp crops; if THC ≤ 0.3 %, report must state “PASSED AS CALIFORNIA INDUSTRIAL HEMP”; registrants must retain signed lab reports for two years and provide copies to buyers or authorities ([law.justia.com](https://law.justia.com/codes/california/code-fac/division-24/section-81006/?utm_source=openai)). Total THC includes Δ9 + THCA, calculated with measurement of uncertainty per CDFA rules (3 CCR § 4890) ([cdfa.ca.gov](https://www.cdfa.ca.gov/plant/industrialhemp/faq.html?utm_source=openai)). For hemp‑derived products, COA must confirm CBD or CBN exceeds 99 % of total chromatographic peaks and no THC or synthetic cannabinoids present (AB 8) ([cdph.ca.gov](https://www.cdph.ca.gov/Programs/CEH/DFDCS/Pages/FDBPrograms/FoodSafetyProgram/AssemblyBill8FAQ.aspx?utm_source=openai)).

What to buy

Non‑intoxicating hemp products (CBD or CBN isolates) in foods, beverages, dietary supplements, cosmetics, and processed pet food with IHEO authorization and no detectable THC. Agricultural hemp (seeds, fiber, oil) under CDFA registration.

What to avoid

Hemp flower, pre‑rolls, inhalable hemp products, any hemp‑derived product with detectable THC, synthetic cannabinoids, THC isolates, Δ8, Δ10, THCA above trace — these are prohibited in‑state ([testing.cannabis.ca.gov](https://testing.cannabis.ca.gov/cannabis-laws/hemp/?utm_source=openai)).

How to shop compliant, tested hemp

• Industrial hemp defined as ≤ 0.3 % total THC (Δ9 + THCA) dry weight (HSC § 11018.5, effective Jan 1 2026)
• Sale of hemp flower, pre‑rolls, inhalable hemp products prohibited (HSC § 11018.5(c), AB 8, effective Jan 1 2026)
• Hemp food/beverage/dietary supplements must contain no detectable THC per serving; max 5 servings per package; purchaser must be ≥ 21 (CDPH emergency regs, effective Sept 23 2024)
• Cosmetics may contain hemp extract with ≤ 0.3 % total THC; must have IHEO authorization (AB 8, effective Jan 1 2026)
• From Jan 1 2028, intoxicating hemp products regulated under cannabis framework and subject to cannabis excise tax (AB 8)

Helpful resource: Learn more about California, USA

Educational content only — not legal or medical advice.

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