Yes, Delta-9 THC is legal in Washington state under specific conditions. The Washington State Liquor and Cannabis Board (WSLCB) regulates hemp-derived Delta-9 THC products containing ≤0.3% THC by dry weight, while marijuana-derived THC remains legal for adults 21+ under Initiative 502. Hemp products must comply with federal Farm Bill standards and WSLCB testing protocols.
Key Regulations for Delta 9 THC in Washington
- THC Concentration Limits: Hemp-derived Delta-9 THC products must not exceed 0.3% THC by dry weight, per WSLCB’s 2023 Interim Rules. Marijuana-derived products, regulated separately, may contain higher THC levels but require state-licensed retail sales.
- Licensing and Testing: All hemp-derived THC products must be tested by WSLCB-accredited labs for potency, contaminants, and compliance. Unlicensed sales or mislabeled products face enforcement actions under RCW 69.50.357.
- Retail and Packaging: Hemp-derived Delta-9 products cannot be sold in licensed marijuana retailers unless explicitly approved. Packaging must include QR codes linking to lab results and comply with child-resistant standards under WAC 314-55-102.