Supreme Court's Review Of Utility MACT Prompts Regulatory Uncertainty

The Supreme Court's decision to hear an appeal from the power sector and several states challenging EPA's utility maximum achievable control technology (MACT) air toxics rule is prompting regulatory uncertainty, sources say, as the court could scrap the rule entirely or require a comprehensive new review of whether it is cost effective. Not only is the rule seen as a key strategy for reducing power plants' emissions of mercury and other air toxics, but it is expected to have a...