Overview
- More than 15 environmental and health organizations, including the Center for Biological Diversity, the American Lung Association, the Clean Air Council and the Sierra Club, filed a lawsuit in Washington challenging the repeal.
- The 2009 Endangerment finding determined six greenhouse gases threaten public health and formed the legal foundation for many federal emissions rules, especially for vehicles.
- The revocation on February 12 was followed, according to filings, by the end of federal vehicle emissions standards and a potential path to undo additional regulations such as limits on power-plant pollution.
- The White House called the move the biggest act of deregulation in U.S. history and said it would save Americans trillions of dollars, including through lower new-car prices.
- Plaintiffs argue the administration’s legal rationale has already been rejected by courts, more suits are expected including from California, and the case could ultimately reach the U.S. Supreme Court.