Illinois Controlled Substances Act §204
Illinois Schedule I controlled-substance list.
Open sourceNo. Psilocybin mushrooms are illegal statewide in Illinois in 2026; Chicago has not passed psilocybin decriminalization.
Illinois has introduced multiple bills addressing psilocybin, including a CURE Act modeled on similar legislation elsewhere. None have passed as of 2026. Psilocybin mushrooms are Schedule I under the Illinois Controlled Substances Act and federal law. No city in Illinois has passed a deprioritization resolution specifically for psilocybin.
Illinois Schedule I controlled-substance list.
Open sourceOfficial source for the CURE Act and related psychedelic bills.
Open sourceAs of 2026, Illinois does not have a licensed psilocybin access program. Legal options for residents include:
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Bills, votes, and effective dates — delivered when they happen.
No. Psilocybin mushrooms are illegal statewide in Illinois in 2026; Chicago has not passed psilocybin decriminalization.
No. Psilocybin is Schedule I under the Illinois Controlled Substances Act (720 ILCS 570/204). No state or city decriminalization has passed. The CURE Act and HB 4782 are pending bills.
No. Psilocybin is a Schedule I controlled substance under the Illinois Controlled Substances Act (720 ILCS 570/204). No state-level decriminalization or therapeutic access program has passed. No Illinois city — including Chicago — has passed a deprioritization resolution for psilocybin.
No. Chicago has not passed any city resolution on psilocybin mushrooms. Illinois state law classifies psilocybin as Schedule I, and that applies throughout Chicago.
The CURE Act (Compassionate Use and Research of Entheogens) — filed as SB 3695 and related companion bills — would create a licensed therapeutic access framework for psilocybin and related psychedelics in Illinois. It is modeled on Oregon's Measure 109. As of 2026 it has not passed.
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