Mercury and Air Toxics Standards (MATS) limit the amount of mercury and other toxic emissions from coal- and oil-fired power plants. On Friday, February 20, 2026, the Trump administration announced it is rolling back clean air regulations limiting mercury and other hazardous toxins from power plants. The rollback will lead to greater emissions of mercury, heavy metals, and increase the risk of cancer, lung, and heart disease for communities living near coal power plants. Check out our fact sheet to learn more about MATS, the rollback timeline, and its impact on our communities.
