Clean Air Act

A bill in the Montana Legislature that would limit state officials' ability to regulate air quality standards has advanced to the Senate floor. This comes amid ongoing changes at the federal level to loosen regulations.

Legislators have voted forward bills on property tax relief, Medicaid expansion, judicial oversight and more.

The U.S. Environmental Protection Agency has reached a settlement with a Great Falls oil refinery for its federal Clean Air Act violations. Groundwater near a lake in the Swan Valley has not been contaminated due to wastewater leaking from a nearby holding pond.

The president of an oil processing company whose Eastern Montana plant exploded in 2012 was sentenced to 18 months in federal prison.The Billings Gazette…

The Montana Supreme Court heard arguments Wednesday over how the Public Service Commission should set the rates NorthWestern Energy has to pay for power…

Units 1 and 2 of the coal-fired power plant in Colstrip will permanently close at the end of this year. Plant operator Talen Energy made that announcement…

Lawmakers in Helena are starting to debate whether the state could borrow up to $500 million to buy the coal-fired power plant in Colstrip. The future of…

A new study funded in part by the coal industry says shutting down of Colstrip’s two newer, larger coal-fired electricity generators in the next decade…

The speaker of Montana’s House is hoping to extend the life of the coal-fired power plants in Colstrip by offering their operators loans to keep them…

The U.S. Environmental Protection Agency says Billings is now in compliance with federal air pollution standards. Gov. Steve Bullock says this is the…