Montana's SJ 14 is a state legislative resolution requesting the federal government release over 660,000 acres of designated wilderness study areas from consideration for inclusion in the National Wilderness Preservation System. It specifically targets seven Montana wilderness study areas (including West Pioneer, Sapphire, and Big Snowies) and 37 Bureau of Land Management wilderness study areas that have remained in legal limbo since the 1977 Montana Wilderness Study Act. The resolution argues these lands are hindering multiple-use management (like timber harvesting and agriculture) and causing federal management uncertainty, and asks for their formal release to allow standard federal land management under the National Forest Management Act. The resolution was tabled in committee and died in process in 2025, so it has not become law.
SB 294 requires Montana's public utilities (like electricity providers) to create a detailed plan by May 2026 showing how they will source 100% of their retail electricity from renewable energy (including hydroelectric power) and reduce greenhouse gas emissions. The plan must outline specific options, timelines, and challenges for achieving these goals, aligning with Montana's constitutional duty to protect the environment. Utilities must submit these plans to the Energy and Telecommunications Interim Committee by June 2026, which will review them, gather public input, and recommend changes to the next legislature. The bill takes immediate effect upon passage but is currently inactive after dying in committee.
SB 473 prohibits most weather modification activities in Montana, specifically banning large-scale "geoengineering" projects like spraying particles into the atmosphere to alter climate (e.g., stratospheric aerosol injection or marine cloud brightening). It exempts established cloud seeding practices used for agriculture and snowmaking under existing law (85-3-101 through 85-3-424). The bill directly affects researchers, companies, or entities conducting weather-altering experiments within Montana’s borders. Key provisions ban intentionally releasing chemicals or devices for weather control, temperature modification, or sunlight intensity changes, except for permitted cloud seeding. The law takes immediate effect upon enactment.
HB 658 would have limited local health boards' authority to create sanitation rules stricter than state standards, affecting communities that previously could enforce tougher local requirements. It specifically protected existing subsurface wastewater systems (like septic systems) from being subject to new local rule changes. The bill amended Montana law (sections 50-2-116 and 50-2-130) to remove local boards' ability to adopt more stringent sanitation regulations and to ensure current systems remain exempt from future rule updates. This change would have shifted regulatory authority toward state standards for wastewater and sanitation compliance.
HB 923 directs the Montana Department of Environmental Quality (DEQ) to amend its administrative rules by January 1, 2026. This amendment will create a new categorical exclusion from nondegradation authorization requirements. This exclusion applies to areas where a county commission demonstrates it has prohibited drinking water wells and ensures absorption trenches are at least 1,000 feet from downstream high-quality surface waters. The bill also appropriates $10,000 to the DEQ to implement these rule changes and provide guidance.
HB 684 eliminates a specific deadline that previously required the Department of Environmental Quality (DEQ) to review data used for water quality assessments. This bill amends Section 75-5-702, MCA, removing the requirement for the DEQ to complete these data reviews within a set timeframe. This change primarily affects the DEQ's operational procedures for monitoring state waters and assessing their quality, as well as individuals and entities who submit water quality data for review.
HB 587 revises existing mine reclamation laws. The bill updates the definition of "material damage" and clarifies the hydrologic and geologic information required for mining permits. It grants rulemaking authority to the Department of Environmental Quality and amends specific sections of state law. These changes impact mining operations by adjusting the regulatory framework and definitions used for reclamation activities.
House Bill 411 (HB 411) exempts agricultural property from local property tax levies that are used to fund open space initiatives. This means that owners of land classified as agricultural will no longer be required to pay the portion of their property taxes designated for open space purposes. The bill also allows counties to reduce any open space payments made to agricultural properties that are now exempt from these levies. This change applies retroactively to property tax years beginning on or after January 1, 2025.
HB 26, titled "Repeal mercury thermostat collection act," eliminates the existing Mercury-Added Thermostat Collection Act. This bill removes state requirements that prohibited the sale and installation of mercury-added thermostats. It also discontinues mandates for manufacturers to operate collection and recycling programs, for wholesalers to provide collection sites, and for related education, outreach, and annual reporting. The repeal of these specific sections of the Montana Code Annotated removes these environmental regulations concerning mercury thermostats.
HB 346 exempts various grant and loan programs from environmental review requirements under the Montana Environmental Policy Act (MEPA). This bill directly affects the Department of Commerce, Board of Housing, and other commissions by removing the need for environmental assessments when authorizing or administering these specific programs. The exemptions apply to programs supporting microbusiness development, historic preservation, workforce training, housing finance, and other economic development initiatives. This aims to streamline the process for providing financial assistance through these identified programs.