Yes, THCA is legal in Washington under state law, provided it meets specific criteria. The 2026 compliance framework aligns with the Washington State Liquor and Cannabis Board (WSLCB) regulations, treating THCA as a non-psychoactive cannabinoid if derived from compliant hemp or licensed cannabis sources. Products must contain ≤0.3% Delta-9 THC by dry weight and adhere to packaging and labeling mandates.
Key Regulations for THCA in Washington
- Hemp-Derived THCA: Must originate from hemp registered with the Washington State Department of Agriculture (WSDA) under the 2023 Hemp Program, ensuring THCA content is derived from compliant plant material. WSDA-issued certificates of analysis (COAs) are mandatory for verification.
- Cannabis-Derived THCA: If sourced from licensed cannabis producers, THCA must comply with the WSLCB’s adult-use and medical cannabis rules, including potency limits and testing for contaminants. Retail sales require WSLCB-approved licenses.
- Product Restrictions: THCA products cannot be marketed as intoxicating or induce psychoactive effects. Edibles, topicals, and inhalable products must meet WSLCB’s packaging standards, including child-resistant containers and THC content disclosures. Local jurisdictions may impose additional restrictions.