UT HB0281

Creates a rebuttable presumption that THC or THC analog intoxication is the major contributing cause of a workplace injury when an employee's whole blood level exceeds 20 nanograms/ml at the time of injury

Employees with THC levels above 20 ng/ml may have workers' compensation benefits denied entirely (if THC use was the major contributing cause) or reduced by 15% (if it was a contributing but not major cause)

Requires blood testing rather than urine testing for cannabinoids in workers' compensation cases, lowering the threshold from 50 ng/ml urinary cannabinoids to 20 ng/ml whole blood THC

Defines "THC analog" broadly as substances structurally or pharmacologically similar to delta-9-THC, while explicitly excluding non-intoxicating cannabinoids like CBD, CBG, CBN, and non-intoxicating THC metabolites

Effective date: May 6, 2026