Utah's air pollution plan is not good enough, US environmental regulators say
What happened
US environmental regulators have rejected parts of Utah's plan to reduce regional haze and improve air quality. This means Utah must now submit a new plan that meets federal standards for visibility and ozone pollution.
Why it matters
States are required to submit plans to clean up their air. When US environmental regulators reject a state's plan, it forces the state to go back to the drawing board. This can lead to new regulations on industries within the state, or to federal intervention if the state fails to comply.
The signal
Watch for Utah's revised air quality plan and whether it includes stricter emissions controls for industrial sources.