A state legislature will vote and pass a bill allowing either regulated psilocybin therapy (like Oregon and Colorado did) or decriminalizing possession of psychedelics. This matters because it creates legal markets and proves the model works elsewhere. However, this is harder than just introducing a bill—the law must actually pass both chambers and be signed.
Oregon Measure 109 is operational; Colorado Prop 122 implementation is underway. Several states (California, Minnesota, Maryland, Nevada) have active bills. However, 'passes' means full legislative passage (both chambers where applicable) and governor signature or veto override—not merely committee advancement. State legislative sessions vary; many close before October. Historical base rate of psychedelic bills actually passing full legislatures remains low (2 states in ~5 years). Confidence trimmed from original 0.73 to reflect that passage is a high bar distinct from introduction.