This report provides an overview of major federal environmental regulations and court decisions of 2024. Landmark U.S. Supreme Court decisions with lasting consequences for environmental policy include Loper Bright Enterprises v. Raimondo, 603 U.S. 369 (2024),1 which ended judicial deference to administrative agencies, and Corner Post v. Federal Reserve, 603 U.S. 799 (2024), which opened the doors of federal courts to many more plaintiffs challenging regulations. These decisions have subsequently bolstered efforts to limit or rollback regulatory actions, both by industry and by members of the Trump administration. The Congressional Review Act (CRA), which allows Congress to rescind or invalidate new regulations, has also been used as the basis for invalidating many of the environmental regulations adopted since August 2024.
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