Is Psilocybin Mushroom Legal in Washington?

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.

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.

Update History

No regulatory updates recorded yet. Status reflects current database.