Washington Hemp & Hemp‑Derived Cannabinoid Law Guide

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

Washington, USA hemp laws: quick overview

Washington’s hemp law is grounded in RCW 15.140.020, which defines hemp as Cannabis sativa L. containing no more than 0.3% Δ9‑THC on a dry weight basis, matching the federal baseline (2018 Farm Bill) ([legalclarity.org](https://legalclarity.org/is-cbd-legal-in-washington-state-rules-and-limits/?utm_source=openai)). The WSDA administers hemp licensing and enforces a 30‑day pre‑harvest sampling window under WAC 16‑306‑055, effective January 15, 2022, per ESB 5372 ([agr.wa.gov](https://agr.wa.gov/departments/agricultural-products/hemp?utm_source=openai)). In 2023, SB 5367 amended RCW 69.50 to require that any product with detectable THC—regardless of source or isomer—must be sold only through WSLCB‑licensed cannabis retailers, closing the intoxicating hemp loophole ([lcb.wa.gov](https://lcb.wa.gov/education/hemp-synthetic-thc-products?utm_source=openai)). WSLCB’s Policy Statement PS21‑01 (April 2021) and Bulletin 21‑03 (September 2021) classify chemically converted delta‑8 THC as a Schedule I controlled substance under RCW 69.50.204, prohibiting its manufacture or sale by licensed cannabis businesses ([cannabisregulations.ai](https://www.cannabisregulations.ai/state-legality/washington-delta-8?utm_source=openai)). THCA and other intoxicating cannabinoids (delta‑10, HHC, etc.) are similarly restricted under SB 5367, which channels any consumable hemp product with detectable THC into the cannabis licensing system ([thcamap.com](https://www.thcamap.com/legal/wa/?utm_source=openai)).

Shipping guidance

Inbound shipments of hemp products with any detectable THC are not allowed into general retail channels; only WSLCB‑licensed cannabis retailers may receive such products. Age verification (21+) and cannabis retailer registration are required for any THC‑containing product shipments.

Testing & COA guidance

WSDA requires licensed hemp producers to test hemp within 30 days before harvest under WAC 16‑306‑055. Labs must be accredited (ISO 17025) per Department of Ecology rules effective July 2024 ([lcb.wa.gov](https://lcb.wa.gov/hemp/what_to_know?utm_source=openai)). Certificates of Analysis (COAs) must accompany hemp; retention requirements are not specified in available sources.

What to buy

Hemp products containing ≤ 0.3% Δ9‑THC dry weight and no detectable THC in finished ingestible form may be sold in general retail (e.g., CBD topicals, hemp seed oil, fiber products). Non‑ingestible hemp goods with no THC are permitted.

What to avoid

Avoid any hemp‑derived products with detectable THC—including delta‑8, delta‑10, THCA, HHC, or other intoxicating cannabinoids—as these are banned from general retail and may only be sold through licensed cannabis retailers. Ingestible hemp products with any THC are prohibited in general retail.

How to shop compliant, tested hemp

• Washington defines hemp as ≤ 0.3% Δ9‑THC dry weight under RCW 15.140.020
• Any product with detectable THC must be sold only through WSLCB‑licensed cannabis retailers (SB 5367, 2023)
• Delta‑8 THC (chemically converted) is classified as Schedule I and banned from retail (WSLCB Bulletins 21‑03, PS21‑01)
• THCA and other intoxicating cannabinoids are channeled into the cannabis system under SB 5367
• WSDA requires hemp producer licensing and 30‑day pre‑harvest testing window (WAC 16‑306‑055)
• Ingestible hemp products with any detectable THC are prohibited in general retail

Helpful resource: Learn more about Washington, USA

Educational content only — not legal or medical advice.

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