Senate Bill 67, titled the "Montana Automated Driving Systems Act," allows vehicles equipped with automated driving systems to be used on the public highways of Montana. The bill defines various levels of these systems, from Level 1 (driver assistance) to Level 5 (full automation). It permits Level 1, 2, and 3 automated driving systems without additional restrictions. However, Level 4 and 5 systems are allowed subject to limitations established by the Department of Transportation through rulemaking, which is also granted by the bill. This legislation creates a framework for the use and regulation of autonomous vehicles in the state.
SB 264 amends Montana law concerning motor vehicle exhaust noise. This bill eliminates a specific legal defense for motor vehicle operators cited for exceeding the 95-decibel noise limit. Previously, a driver could not be convicted if they had reasonable grounds to believe their vehicle complied with the noise standard. With this change, that defense is no longer available to those charged with a violation.
SB 428 revises how local authorities and county commissions can set speed limits on roads. It allows local authorities to adjust speed limits in various areas, such as urban districts, outside urban districts, and school zones, typically requiring an engineering and traffic investigation. A key change is that boards of county commissioners can now set certain decreased speed limits on county roads, including in school zones, without first conducting an engineering and traffic investigation. The bill also specifies signage requirements for altered limits and mandates consultation with relevant bodies for school zones.
SB 380 generally revises various motor vehicle laws, impacting drivers, vehicle owners, and the state department. The bill expands the recognition of driver's licenses and identifications to include the Commonwealth of the Northern Mariana Islands. It also revises disability parking permit application requirements, allowing licensed advanced practice registered nurses to issue interim permits. Further provisions update vehicle title, registration, and license plate laws, enable more electronic transactions with the department, and adjust the minimum age for driver's licenses and commercial driver's license expirations.
SB 508 revises Montana's driving under the influence (DUI) laws concerning tetrahydrocannabinol (THC) for younger drivers. This bill establishes that for individuals under 21 years of age, having any detectable amount of THC in their system constitutes a DUI offense. This means there is no specific THC concentration threshold for drivers under 21, unlike the 5 ng/ml limit for adult drivers. The change applies to any amount of THC, excluding inactive metabolites, found in a driver under 21.
HJ 20 is a joint resolution from the Montana Legislature requesting the federal government to increase the hours of service at Montana-Canada customs ports of entry. This resolution aims to enhance trade and allow for increased cross-border travel, which the state legislature states has been impeded by recent reductions in service hours. It directly affects the federal government by formally communicating Montana's request and seeks to benefit businesses and individuals who engage in cross-border activities between Montana and Canada.
Senate Joint Resolution 16 is a resolution from the Montana Legislature urging the federal government to establish safety standards for automated vehicles. It specifically calls on the U.S. Congress and the federal Department of Transportation to adopt laws and rules ensuring these vehicles can operate safely in all weather conditions, including snow and ice, and all road conditions, such as mountain passes and open range areas. The resolution highlights Montana's unique challenges, such as a high rate of animal-related car crashes, as a particular concern for automated driving systems.
Senate Joint Resolution 19 (SJ 19) requests an interim study on ways to improve passenger transportation and public transit services throughout Montana. The study aims to benefit various residents, including senior citizens, people with disabilities, students, and tourists, particularly in areas currently underserved by transportation options. It will investigate potential solutions, such as establishing a passenger transportation commission and reviewing laws to accommodate autonomous vehicles. The Legislative Council is requested to assign a committee or staff to conduct this study, with final results and recommendations due to the 70th Legislature by September 15, 2026.
SB 309 eliminates the Scenic-Historic Byways Advisory Council, which was previously responsible for assisting in the design and review of the state's scenic-historic byways program. This council, composed of up to 11 members with expertise in areas like tourism, history, and transportation, also helped develop criteria for designating roads. Under this bill, the Montana Department of Transportation and the commission would no longer have this specific advisory body for these functions. The scenic-historic byways program itself and the commission's authority to designate roads remain in effect.
Montana's SJ 3 is a joint resolution urging the U.S. Congress to revise federal commercial driver's license (CDL) requirements. It specifically requests that Congress exempt small haulers (e.g., pickup trucks carrying nonhazardous materials) and school bus drivers from needing CDLs, citing burdens on small businesses and rural school districts. The resolution does not change any laws but formally asks Congress to adjust federal rules to reduce these requirements. Montana's delegation and relevant federal committees will receive copies of the resolution.