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Status verified January 1, 2025 – No legislative changes detected.
Is Psilocybin Mushroom Legal in Washington?
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Current Status
Washington enacted HB 1436 in 2023, creating a framework for regulated psilocybin therapeutic services. The law directs the Washington State Department of Health to develop rules for licensed psilocybin service providers, with the program expected to be operational by 2024-2025. Personal possession of psilocybin mushrooms outside the therapeutic framework remains illegal under state law.
Mushroom legality varies by state. View the interactive map for all 50 states, or see other restricted states in the Related States section below.
Age Restriction: Must be 21+ to purchase mushroom in Washington
What Merchants Need to Know
- Age verification required (21+) for all sales
- Lab testing recommended for all products
- Labeling must comply with state standards
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