The new rule — the Affordable Clean Energy, or “ACE,” rule — restricts emission reduction efforts coal companies and states are obligated to employ. ACE does not mention any goals for major emission reductions. Andrew Wheeler, President Donald Trump’s acting administrator of the EPA, on Monday signed a proposal to scrap environmental restrictions on power plants and leave much of the regulation of the industry to states. The rule sets mere guidelines for states to develop and submit to the EPA plans to establish “patterns of performance” for existing coal plants. Power utilities would get a boost under the plan, which effectively replaces Obama’s Clean Power Plan. The EPA predicts the rule will affect more than 300 power plants.