Washington Hemp & Hemp‑Derived Cannabinoid Law Guide

This guide explains Washington State’s hemp and hemp‑derived cannabinoid laws as of May 3, 2026, for educational purposes only—not legal advice.

Washington, USA hemp laws: quick overview

Washington defines hemp as Cannabis sativa L. with Δ9‑THC ≤ 0.3 % on a dry‑weight basis, consistent with federal law; this is enforced under WSDA’s Hemp Program and WAC 16‑306‑055 (effective January 15, 2022) which also extended the sampling window to 30 days pre‑harvest and allows remediation options for over‑limit hemp ([agr.wa.gov](https://agr.wa.gov/departments/agricultural-products/hemp?utm_source=openai)). In 2023, the Legislature passed Senate Bill 5367, codified at RCW 69.50.575, mandating that any product with detectable THC—regardless of hemp origin—may only be sold by licensed cannabis retailers; unlicensed stores may not sell delta‑8, delta‑10, or other THC‑containing hemp products ([lcb.wa.gov](https://lcb.wa.gov/education/hemp-synthetic-thc-products?utm_source=openai)). The WSLCB issued a policy statement clarifying that synthetic or chemically altered cannabinoids, including delta‑8 THC derived from CBD, are prohibited under RCW 69.50.204 and related statutes; only naturally occurring cannabinoids cultivated in licensed facilities may be used ([lcb.wa.gov](https://lcb.wa.gov/sites/default/files/publications/rules/Statements/Conformed%20THC%20Isomers%20Policy%20Statement%2004282021.pdf?utm_source=openai)).

Shipping guidance

Inbound shipments of hemp with ≤ 0.3 % Δ9‑THC are allowed for licensed hemp producers. Any product with detectable THC must be sold via licensed cannabis retailers—shipping to unlicensed stores is prohibited. Age verification (21+) applies at point of sale in cannabis retail. Retailer license required for THC‑containing hemp products.

Testing & COA guidance

WSDA‑licensed hemp producers must test hemp for Δ9‑THC under WAC 16‑306‑055, with a 30‑day pre‑harvest sampling window and remediation options ([agr.wa.gov](https://agr.wa.gov/departments/agricultural-products/hemp?utm_source=openai)). Labs must be certified by Department of Ecology starting July 2024 for potency, pesticides, heavy metals ([lcb.wa.gov](https://lcb.wa.gov/hemp/what_to_know?utm_source=openai)). Certificate of Analysis (COA) retention requirements not specified in available sources.

What to buy

Non‑ingestible hemp products with ≤ 0.3 % Δ9‑THC (e.g. textiles, body‑care, industrial oils) are legal. Hemp‑derived CBD may be used as additive by licensed cannabis producers if < 0.3 % THC ([lcb.wa.gov](https://lcb.wa.gov/hemp/what_to_know?utm_source=openai)).

What to avoid

Avoid ingestible hemp‑derived cannabinoids (gummies, tinctures, beverages, vapes)—these are prohibited by WSDA ([agr.wa.gov](https://agr.wa.gov/departments/agricultural-products/hemp?utm_source=openai)). Avoid synthetic or chemically altered cannabinoids (delta‑8, delta‑10, HHC, etc.)—these are prohibited under WSLCB policy and RCW statutes ([lcb.wa.gov](https://lcb.wa.gov/sites/default/files/publications/rules/Statements/Conformed%20THC%20Isomers%20Policy%20Statement%2004282021.pdf?utm_source=openai)). Smokable hemp flower with detectable THC must be sold only via licensed cannabis retailers.

How to shop compliant, tested hemp

• Hemp must test ≤ 0.3 % Δ9‑THC dry weight per WSDA rules.
• Any product with detectable THC must be sold only by licensed cannabis retailers (SB 5367, 2023).
• Ingestible hemp‑derived cannabinoids (e.g. CBD gummies, tinctures) are prohibited (WSDA).
• Synthetic or chemically altered cannabinoids (e.g. delta‑8 from CBD) are prohibited (WSLCB policy).
• Hemp producers must be licensed by WSDA and follow 30‑day pre‑harvest sampling window (WAC 16‑306‑055).

Helpful resource: Learn more about Washington, USA

Educational content only — not legal or medical advice.

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