OK SB1257

Adds tetrahydrocannabinol (THC) to Schedule I controlled substances and expands the definition of "marijuana" to include tetrahydrocannabinols, synthetic equivalents, and derivatives with similar chemical structure and pharmacological activity

Removes tetrahydrocannabinols from Schedule III controlled substances and removes glutethimide from Schedule III

Modifies the definition of "tetrahydrocannabinols" to clarify it includes all chemically synthesized substances emulating THC from marijuana, specifically including tetrahydrocannabinols derived from industrial hemp

Updates testing standards for industrial hemp to require combined delta-9 THC and tetrahydrocannabinolic acid concentration not exceed 0.3% on dry-weight basis using post-decarboxylation or similar methods

Effective date: November 1, 2026