The bill, titled the "Montana Automated Driving Systems Act," aims to regulate the use of vehicles equipped with automated driving systems on state public highways. It replaces the term "autonomous vehicles" with "vehicles with automated driving systems" and introduces a comprehensive framework that includes definitions for various levels of automated driving systems, ranging from Level 1 to Level 5. The legislation emphasizes safety for the traveling public, long-term predictability for individuals and businesses, and the unique driving conditions in Montana. It also allows for the use of Level 1, Level 2, and Level 3 automated driving systems on public highways, while Level 4 and Level 5 systems will be subject to limitations established by the Department of Transportation.

Additionally, the bill grants rulemaking authority to both the Department of Transportation and the Department of Justice, allowing them to adopt regulations regarding the use of automated driving systems. These departments are required to consult with various stakeholders, including law enforcement, the motor vehicle and insurance industries, and local governments, before proposing any rules. The legislation aims to ensure that regulations do not discriminate against vehicles with automated driving systems while allowing local governments to regulate traffic within their jurisdictions.