Environment (Water Quality)

HB 685 establishes a "feasibility allowance" as part of the state's water quality nondegradation policy. This allows individuals or entities seeking to degrade high-quality state waters to request this allowance when working to meet water quality standards. The bill revises certain definitions, including expanding who is considered an "interested person" to include those requesting such an allowance. It also amends administrative rules and grants rulemaking authority to the Department of Environmental Quality to implement these new provisions, directly affecting industries and projects that impact state waters.

SB 349 would have transferred authority over air and water quality regulations for existing fossil fuel power plants in Montana from the federal Environmental Protection Agency (EPA) to the state Department of Environmental Quality (DEQ), making DEQ the sole permitting authority for these facilities. It claims federal EPA rules lack authority to restrict plant operations without requiring "significant economic investment" from plant owners and utilities. The bill includes a contingency that would void it if the EPA repeals two specific 2024 rules (89 Fed. Reg. 38508 and 39798). This bill died in committee in May 2025 and never became law.