EPA to Roll Back Emissions Rules
The Environmental Protection Agency is set to repeal Biden-era standards for toxic emissions from power plants and is also eliminating all federal greenhouse gas emission standards for vehicles. The agency is rescinding the 2009 Endangerment Finding, a move expected to benefit the coal industry and heavy manufacturing. The federal rollback is likely to create a more complex patchwork of state-level environmental regulations.
- The 2009 Endangerment Finding was rooted in the 2007 Supreme Court case *Massachusetts v. EPA*, which determined that greenhouse gases qualify as air pollutants under the Clean Air Act; rescinding the finding removes the legal predicate that has required the EPA to regulate these emissions from vehicles and other sources for over 15 years. - The repealed power plant rules include the 2024 update to the Mercury and Air Toxics Standards (MATS), which had tightened the emissions standard for toxic metals by 67% and reduced the mercury emissions standard from lignite-fired plants by 70%. - Federal greenhouse gas standards for all light-, medium-, and heavy-duty vehicles for model years 2012 through 2027 and beyond are eliminated, a move the administration claims will save more than $1.3 trillion in regulatory costs. - The EPA’s legal justification for the repeal is based on the "major questions doctrine," arguing that Congress did not grant it the authority to enact such sweeping regulations, and on the concept of "futility," claiming the standards would have a de minimis impact on global climate. - The elimination of a single federal standard may increase compliance costs for manufacturers operating nationally, as they will now need to navigate a growing patchwork of differing state-level GHG disclosure rules and emissions standards. - By removing the federal framework, the action may paradoxically increase legal risk for corporations, as the existence of federal regulations has previously been used as a defense to dismiss climate-related tort lawsuits brought under state law. - The Biden-era rule for power plants, now repealed, would have required facilities planning to operate long-term to control 90% of their carbon pollution. - Legal challenges from states and environmental organizations are expected, which could create prolonged uncertainty for manufacturers regarding long-term compliance and investment planning.
