Marijuana-class III substance.

HB 166 reclassifies marijuana as a Schedule III controlled substance under Wyoming law, directly affecting medical users and providers who previously relied on state-recognized prescriptions. The bill amends definitions to clarify that "edible products" containing THC (like gummies or baked goods) and "analog" substances with similar effects to marijuana are included in this classification. Crucially, it prohibits practitioners from prescribing or dispensing marijuana, tetrahydrocannabinol (THC), or synthetic equivalents - even for medical use - unless the substance has U.S. FDA approval (like dronabinol). This would effectively ban medical marijuana in Wyoming while maintaining existing penalties for possession under Schedule III rules. The bill is pending, having been assigned a number in 2026 but not yet considered for introduction.