This bill revises existing laws related to driving under the influence (DUI) in Montana by adding a new offense for driving while under the influence of both alcohol and a controlled substance. Specifically, it amends Section 61-8-1002 to include a new subsection (1)(f), which states that a person commits an offense if they drive a noncommercial or commercial vehicle while under the influence of alcohol and a controlled substance as designated in Schedules I through V of Title 50, chapter 32, part 2. The bill also introduces penalties for this new offense, categorizing it as a felony for repeat offenders and establishing specific fines and imprisonment terms for first, second, and subsequent convictions.

Additionally, the bill amends Section 61-8-1007 to outline the penalties for DUI offenses, including increased fines and imprisonment terms based on the number of prior offenses. For instance, a first conviction under the new subsection (1)(f) will result in penalties similar to those for aggravated DUI, while subsequent convictions will incur harsher penalties, including significant fines and potential prison time. The bill emphasizes the importance of compliance with chemical dependency education and treatment programs, and it mandates the revocation or suspension of the offender's driver's license as part of the penalties.

Statutes affected:
LC Text: 61-8-1002, 61-8-1007
HB0541_1(1): 61-8-1002, 61-8-1007
HB0541_1: 61-8-1002, 61-8-1007