Bill > SB1889

This bill amends the Illinois Vehicle Code to clarify and specify regulations around driving under the influence of tetrahydrocannabinol (THC), the primary psychoactive component in cannabis. Specifically, the bill defines and establishes a legal threshold for "free tetrahydrocannabinol concentration" as the amount of parent delta-9-tetrahydrocannabinol detected in blood or another bodily substance (excluding urine). Under the new provisions, a person shall not drive or be in physical control of a vehicle if, within 2 hours of driving, they have a free THC concentration of 5 nanograms or more per milliliter in whole blood or 10 nanograms or more per milliliter in another bodily substance. The bill makes technical changes to existing law, clarifying the definition of THC concentration and establishing presumptive levels of impairment. It maintains existing provisions that the lawful use of cannabis does not constitute a defense against driving under the influence charges, and it applies to medical cannabis patients unless they are demonstrably impaired. The amendment is part of ongoing efforts to establish clear legal standards for cannabis-related driving offenses, recognizing the challenges of measuring cannabis impairment compared to alcohol.

Government Affairs

https://www.ilga.gov/legislation/BillStatus.asp?DocNum=1889&GAID=18&DocTypeID=SB&SessionID=114&GA=104