The bill amends Section 61-8-1002 of the Montana Code Annotated to establish that any detectable level of tetrahydrocannabinol (THC) in the body constitutes driving under the influence (DUI) for individuals under 21 years of age. Specifically, it adds a new provision stating that a person under 21 is guilty of DUI if they have any amount of THC, excluding inactive metabolites, in their blood or other bodily substance. This change is in addition to the existing stipulation that individuals under 21 can be charged with DUI if their blood alcohol concentration is 0.02 or more.

The bill also retains the existing framework for DUI offenses related to alcohol and drugs for drivers of all ages, including specific blood alcohol concentration thresholds for commercial and noncommercial vehicles. The amendments aim to enhance road safety by holding younger drivers accountable for any level of THC, reflecting a stricter stance on drug use while driving.

Statutes affected:
LC Text: 61-8-1002
SB0508_1(1): 61-8-1002
SB0508_1(2): 61-8-1002
SB0508_1(3): 61-8-1002
SB0508_1(4): 61-8-1002
SB0508_1(5): 61-8-1002
SB0508_1: 61-8-1002
SB0508_X(1): 61-8-1002
SB0508_X(2): 61-8-1002
SB0508_X(3): 61-8-1002
SB0508_X(4): 61-8-1002
SB0508_X(5): 61-8-1002
SB0508_X: 61-8-1002